The virus lives in single-celled organisms called amoebae and may be able to infect humans. |
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Though these organisms may also be found as normal flora of alimentary tract, data supporting this contention are lacking. |
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We are multicellular organisms that regenerate some of our cells continuously. |
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The acid is found in organisms, including sardines and krill that eat the algae and that are in turn eaten by the squid. |
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The dust contains compounds and organisms that are damaging and probably killing the living coral. |
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They then perform a crude screening of the organisms to determine if they contain novel chemicals that are biologically active. |
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Suffice it to say, different minerals weather and grow at different rates within higher organisms, just as they do in the ambient environment. |
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The expedition also found rings of plankton organisms that measured 10 km wide. |
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Look for a brand that contains six to eight strains of live organisms, including Lactobacillus acidophilus and Bifidobacter. |
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When acid rain falls in lakes and rivers, it increases the acidity of the water and can kill or seriously damage aquatic organisms. |
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In nature clones are found in organisms capable of asexual reproduction, that is, in certain plants and bacteria. |
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The organisms also produce organic compounds such as lactic acid, hydrogen peroxide and acetic acid. |
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Those organisms not securely fastened to the rocks will likely be torn free and washed ashore or carried into the open ocean. |
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Unlike staphylococci, which tend to cause localised infections such as abscesses, streptococci are essentially organisms that spread. |
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What you might not have expected, however, is that the words that describe these organisms are every bit the equal of their visual analogues. |
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This can explain where the information came from that produces living organisms in hot lava coming from a volcano. |
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Recent research around volcanic vents has found tiny organisms that breathe iron. |
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And most important, we need to be sure that allelochemicals don't harm non-target organisms, including humans. |
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This means that organisms are not agglomerates but ecosystems of co-acting cells with a unique functional focus. |
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The adaptation of organisms to their habitat ultimately depends upon environmental criteria. |
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The Network promotes the use of model organisms and intends to provide a forum for meetings, workshops and other activities. |
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Most of these are from swimming organisms, such as ammonoids and nautiloid mollusks that lived just above the deep seafloor. |
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The cell theory states that all biological organisms are composed of cells; cells are the unit of life and all life comes from preexisting life. |
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Chemists study these organisms because they are able to perform chemical reactions under extreme conditions. |
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Explore the wonders of coral reefs, mangrove communities, and seagrass beds while identifying the marine organisms that live there. |
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These findings illustrate that a prokaryote possesses a signal trafficking system with features common to those used by higher organisms. |
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Kant's pessimism was based on his conception of the nature of living organisms. |
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A foregut-fermenting alimentary system independently originated in these organisms to facilitate the digestion of the cellulose-rich food. |
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When a microbe or a virus invades the body, white cells are among the first of the body's defenses to attack the invading organisms. |
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Up until 1987 this kind of experiment had only done in rodents, rats and mice, and in lower organisms. |
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The million organisms of live rock and sand break down the wastes into nitrate, which can then be removed through mechanical filtration. |
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Antibiotic therapy for these noninfectious problems results in the colonization of highly resistant organisms. |
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Bats feature prominently among organisms that occupy the aerosphere as they extensively use this environment for foraging. |
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The best clue we can give you is that these organisms are considered to be the closest living relatives of land plants. |
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Plants, as other aerobic organisms, require oxygen for the efficient production of energy. |
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According to game theory, organisms often find themselves in zero-sum situations. |
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Fluorescent genes from jellyfish have also been added to organisms in this manner to show which are successful recombinants. |
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By contrast, only 1 or 2 types of Gram-positive organisms are generally cultured in osteomyelitis, almost universally aerobes. |
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Other experiments have involved organisms that are less closely related to us yet easier to study, such as vinegar worms and fruit flies. |
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Other typically much larger organisms, including parasites such as lice, worms and scabies can also spread from person to person. |
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They range in size from microscopic single-cell organisms to parasitic worms that can grow to several feet in length. |
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Drawing from the results of the experiments, the researchers came up with a theory of anabiosis for large living organisms. |
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Tannin helps the leather to resist the effects of heat, decomposition by water and attack by all manner of organisms. |
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The products use a large amount of organisms and adjuvants such as aluminum hydroxide or oil to produce a sufficient immune response. |
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However, mutators may play an important role in the adaptation of organisms to changing environments. |
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These species are small-bodied, cold water species that are generalist feeders on planktivorous zooplankton and benthic organisms. |
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Scientific botany and zoology dealt not with the dynamics of whole living organisms in the field but with dissection of fragments in the laboratory. |
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There is much speculation but little direct evidence for a specific role of secondary metabolites in the growth and reproduction of the organisms that produce them. |
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This symposium marks a pioneering effort to bring together biologists engaged in research on organisms that move through and inhabit the aerosphere. |
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Living organisms function in the context of the abiotic and biotic worlds. |
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The cycling of materials such as carbon, water, and other nutrients is mainly dependent upon soil-dwelling decomposer organisms such as bacteria fungi. |
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Numerous histiocytes contained small oval organisms with bar-shaped paranuclear kinetoplasts, morphologically consistent with leishmanial parasites. |
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Mites and ticks which feed on vertebrate hair or blood often carry disease organisms, such as spirochete bacteria, responsible for relapsing fever and Lyme disease. |
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The most integrated colonies behave like individual organisms, for the zooids making up the colony are all specialized for certain functions and connected to each other. |
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Parts of the inner bark of the trees were removed and microscopic observations, which were carried out the next day, showed the existence of microscopic organisms and acarids. |
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The arguments for genetically modified organisms that have been dinned into us for 15 years are based on an almost sublime misreading of the world's food problems. |
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Is it right to take living organisms from nature and then reassemble and reconstruct their most basic structures, possibly with additional synthetic components? |
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And only in the high seas do we find living organisms that are more than 8,000 years old, such as deep-sea corals. |
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These organisms can reproduce, cross-pollinate, mutate, and migrate. |
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Multicellular marine organisms may have existed as early as 1.7 billion years ago, and plants identifiable as red algae were certainly growing 1.2 billion years ago. |
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However, keep in mind that these are not clear evolutionary groups and probably represent a grade of organisms out of which the fern lineage emerged. |
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Living organisms acquire a characteristic minor fraction of radiocarbon by equilibrating with the carbon dioxide of ambient air or surrounding waters. |
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The organisms in the riparian zone respond to changes in river channel location and patterns of flow. |
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Some Cambrian organisms ventured onto land, producing the trace fossils Protichnites and Climactichnites. |
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Additionally, the event was accompanied by major diversification of other organisms. |
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Prior to the Cambrian explosion, most organisms were simple, composed of individual cells occasionally organized into colonies. |
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Further, only the parts of organisms that were already mineralised are usually preserved, such as the shells of molluscs. |
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A phylum is the highest level in the Linnaean system for classifying organisms. |
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As it is based on living organisms, it accommodates extinct organisms poorly, if at all. |
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Other groups of small organisms from the Neoproterozoic era also show signs of antipredator defenses. |
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They were probably made by organisms resembling earthworms in shape, size, and how they moved. |
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The organisms form three distinct assemblages, increasing in size and complexity as time progressed. |
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These organisms are central to the debate about how abrupt the Cambrian explosion was. |
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Although they are as hard to classify as most other Ediacaran organisms, they are important in two other ways. |
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It often preserved complete specimens of organisms only otherwise known from dispersed parts, such as loose scales or isolated mouthparts. |
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Cyanobacteria were the first organisms to evolve the ability to photosynthesize, introducing a steady supply of oxygen into the environment. |
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Sulfide interferes with mitochondrial function in aerobic organisms, limiting the amount of oxygen that could be used to drive metabolism. |
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These larger organisms would have produced droppings and corpses that were large enough to fall fairly quickly. |
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This genetic threshold may have a correlation to the amount of oxygen available to organisms. |
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These proteins translate into larger, more complex structures that allow organisms better to adapt to their environments. |
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Furthermore, organisms had the opportunity to become more specialized in their own niches. |
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He strongly believed that species of organisms originated in a succession of Divine creative acts throughout the long expanse of history. |
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Micropaleontology deals with all microscopic fossil organisms, regardless of the group to which they belong. |
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Together, these were a prerequisite for the evolution of the most complex eukaryotic cells, from which all multicellular organisms are built. |
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Shallow clear waters over continental shelves encouraged the growth of organisms that deposit calcium carbonates in their shells and hard parts. |
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During the Middle Ordovician there was a large increase in the intensity and diversity of bioeroding organisms. |
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When they returned, they carried diminished founder populations that lacked many whole families of organisms. |
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Herring feed on phytoplankton, and as they mature, they start to consume larger organisms. |
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They are fed a meal produced from catching other wild fish and other marine organisms. |
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Although mussels are valued as food, mussel poisoning due to toxic planktonic organisms can be a danger along some coastlines. |
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The agent of change could be anything from competition from other organisms, continental drift, or climate change such as an ice age. |
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At any one point the salinity will vary considerably over time and seasons, making it a harsh environment for organisms. |
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Estuaries provide habitats for a large number of organisms and support very high productivity. |
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Benthos is the community of organisms which live on, in, or near the seabed, the area known as the benthic zone. |
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Benthos generally live in close relationship with the substrate bottom, and many such organisms are permanently attached to the bottom. |
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Being animals, invertebrates are heterotrophs, and require sustenance in the form of the consumption of other organisms. |
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The body plans of most multicellular organisms exhibit some form of symmetry, whether radial, bilateral, or spherical. |
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All these organisms have a body divided into repeating segments, typically with paired appendages. |
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Developmental and other studies based on modern organisms imply that asteroids and ophiuroids are not closely related within the echinoderms. |
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They provide a crucial source of food to many large aquatic organisms, such as fish and whales. |
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Plankton are organisms drifting in oceans, seas, and bodies of fresh water. |
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Martin Chalfie figured out how to use GFP as a fluorescent marker of genes inserted into other cells or organisms. |
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Some dinoflagellates may feed on other organisms as predators or parasites. |
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It often has spikes on its carapace, which may assist these small organisms in maintaining directional swimming. |
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Phytoplankton is used as a foodstock for the production of rotifers, which are in turn used to feed other organisms. |
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The Burgess Shale contains fossils of very odd organisms that lived during the Acadian. |
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In multicellular organisms, groups of cells form tissues and tissues come together to form organs. |
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The very property of toxic metals that makes them so hazardous to organisms also makes them detoxifiable by humus in soil. |
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The limitations of eutelic organisms illustrate the merits of the normal plan of reproduction by cell division. |
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Choanoflagellates and filasterea are considered the closest unicellular organisms to metazoan animals. |
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These tiny organisms are crucial elements of the food chain supporting many species of fish. |
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Marine organisms on both sides of the isthmus became isolated and either diverged or went extinct. |
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Multicellular organisms require a homeostatic internal environment, in order to live. |
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The ocean beneath the arctic ice cap hosts many unique organisms adapted to the cold and shortage of light. |
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Most parasitic organisms are known to immunosuppress their host to some extent. |
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At the contact to sediment infillings, fungi produced haustoria that penetrated and scavenged on the remains of fragmented marine organisms. |
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Life began in the ocean but eventually transitioned onto land, and by the late Paleozoic, it was dominated by various forms of organisms. |
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Limestone is a sedimentary rock, composed mainly of skeletal fragments of marine organisms such as coral, forams and molluscs. |
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Most grains in limestone are skeletal fragments of marine organisms such as coral or foraminifera. |
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These organisms secrete shells made of aragonite or calcite, and leave these shells behind when they die. |
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The primary source of the calcite in limestone is most commonly marine organisms. |
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Some of these organisms can construct mounds of rock known as reefs, building upon past generations. |
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Coastal limestones are often eroded by organisms which bore into the rock by various means. |
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He examined this topic in his writings, contrasting it with the advantages of crossing amongst many organisms. |
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He still viewed organisms as perfectly adapted, and On the Origin of Species reflects theological views. |
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He was interested in morphogenesis, the development of patterns and shapes in biological organisms. |
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He was a Greenpeace member until the group opposed genetically modified organisms. |
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Like the Linean system for categorizing organisms, the assembly taxonomy is flexible, allowing for future refinement. |
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Contaminating organisms vary greatly, and include skin flora, gut flora, and environmental organisms. |
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Viruses can also carry DNA between organisms, allowing transfer of genes even across biological domains. |
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In July 2016, scientists reported identifying a set of 355 genes from the LUCA of all organisms living on Earth. |
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The fossil record includes a progression from early biogenic graphite, to microbial mat fossils, to fossilized multicellular organisms. |
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In asexual organisms, genes are inherited together, or linked, as they cannot mix with genes of other organisms during reproduction. |
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Gene transfer between species includes the formation of hybrid organisms and horizontal gene transfer. |
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More offspring are produced than can possibly survive, and these conditions produce competition between organisms for survival and reproduction. |
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This would be when either short or tall organisms had an advantage, but not those of medium height. |
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This would, for example, cause organisms to slowly become all the same height. |
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Natural selection can act at different levels of organisation, such as genes, cells, individual organisms, groups of organisms and species. |
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In parasitic organisms, mutation bias leads to selection pressures as seen in Ehrlichia. |
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Adaptation is the process that makes organisms better suited to their habitat. |
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Consequently, structures with similar internal organisation may have different functions in related organisms. |
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It is now becoming clear that most alterations in the form of organisms are due to changes in a small set of conserved genes. |
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Other processes that may promote cooperation include group selection, where cooperation provides benefits to a group of organisms. |
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In sexually reproducing organisms, speciation results from reproductive isolation followed by genealogical divergence. |
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Selection under these conditions can produce very rapid changes in the appearance and behaviour of organisms. |
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All organisms on Earth are descended from a common ancestor or ancestral gene pool. |
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Second, the diversity of life is not a set of completely unique organisms, but organisms that share morphological similarities. |
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However, this approach is most successful for organisms that had hard body parts, such as shells, bones or teeth. |
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More recently, evidence for common descent has come from the study of biochemical similarities between organisms. |
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No obvious changes in morphology or cellular organisation occurred in these organisms over the next few billion years. |
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Artificial selection is the intentional selection of traits in a population of organisms. |
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Natural variation occurs among the individuals of any population of organisms. |
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In biology, competition is an interaction between organisms in which the fitness of one is lowered by the presence of another. |
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When different organisms in a population possess different versions of a gene for a certain trait, each of these versions is known as an allele. |
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The study of their properties is known as organic chemistry and their study in the context of living organisms is known as biochemistry. |
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The natural cycle of hydrogen production and consumption by organisms is called the hydrogen cycle. |
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In living organisms, DNA does not usually exist as a single molecule, but instead as a pair of molecules that are held tightly together. |
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This reversible and specific interaction between complementary base pairs is critical for all the functions of DNA in living organisms. |
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They can be transformed into organisms in the form of plasmids or in the appropriate format, by using a viral vector. |
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It is also letting them probe the genomes of other organisms for DNA that could turn out to be a mother lode for medicine. |
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This effectively means that populations of organisms must have reached a certain measurable level of difference to be recognised as subspecies. |
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A clade is a taxonomic group of organisms consisting of a single common ancestor and all the descendants of that ancestor. |
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These insect and mole-rat colonies are multi-organismic equivalents of single organisms. |
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According to this model, living organisms themselves have goals, and act according to these goals, each guided by a central control. |
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The latter examines the natural environment, and how organisms, climate, soil, water, and landforms produce and interact. |
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During winter, when organisms die, carbon is deposited down, resulting to a black layer. |
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It is difficult to define a species in a way that applies to all organisms. |
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An ecological species is a set of organisms adapted to a particular set of resources, called a niche, in the environment. |
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A phenetic species is a set of organisms which have a similar phenotype to each other, but a different phenotype from other sets of organisms. |
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Newly emerged hatchlings are carnivorous, pelagic organisms, part of the open ocean mininekton. |
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Thus Triassic stratigraphy is mostly based on organisms that lived in lagoons and hypersaline environments, such as Estheria crustaceans. |
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These screens are only partially effective and as a result billions of fish and other aquatic organisms are killed by power plants each year. |
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Marine ecology is the study of how marine organisms interact with each other and the environment. |
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Marine organisms contribute significantly to the oxygen cycle, and are involved in the regulation of the Earth's climate. |
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Shorelines are in part shaped and protected by marine life, and some marine organisms even help create new land. |
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A subgroup of organisms in this habitat bores and grinds exposed rock through the process of bioerosion. |
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Recent advances in underwater tracking devices are illuminating what we know about marine organisms that live at great Ocean depths. |
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Initially, organisms such as sharks and hagfish scavenge the soft tissues at a rapid rate over a period of months and as long as two years. |
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The sea otter may pluck snails and other organisms from kelp and dig deep into underwater mud for clams. |
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Initially, moving organisms, such as sharks and hagfish, scavenge soft tissue at a rapid rate over a period of months to as long as two years. |
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The age of the organisms and their resulting fossil fuels is typically millions of years, and sometimes exceeds 650 million years. |
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Environmental effects are similar to those of point absorber buoys, with an additional concern that organisms could be pinched in the joints. |
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There is also concern about marine organisms getting trapped or entangled within the air chambers. |
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Aquaculture now provides approximately half of all harvested aquatic organisms. |
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Salinity is an ecological factor of considerable importance, influencing the types of organisms that live in a body of water. |
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Littoral marine organisms colonized shorelines as ocean water replaced glacial meltwater. |
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In addition, the additional local humidity due to evaporation usually creates a microclimate supporting unique types of organisms. |
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Microscopic organisms thrive and larger species enter a rapid breeding cycle. |
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A food chain also shows how the organisms are related with each other by the food they eat. |
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Producers, such as plants, are organisms that utilize solar or chemical energy to synthesize starch. |
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Jaws allow fish to eat a wide variety of food, including plants and other organisms. |
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Although some organisms are found across most of these habitats, the majority have more specific requirements. |
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Other organisms cope with the drying up of their aqueous habitat in other ways. |
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Aside from the large numbers of organisms actually consumed by the walrus, its foraging has a large peripheral impact on benthic communities. |
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Algae can be used as indicator organisms to monitor pollution in various aquatic systems. |
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In the first case, organisms are purposely released for establishment in the wild. |
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Escaped organisms are included in this category because their initial transport to a new region is human motivated. |
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There are also numerous examples of marine organisms being transported in ballast water, one being the zebra mussel. |
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These impacts result in decreases in species diversity and ecological changes towards more opportunistic organisms. |
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After such organisms die, the bacterial degradation of their biomass consumes the oxygen in the water, thereby creating the state of hypoxia. |
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Population numbers, trends and species' conservation status can be found in the lists of organisms by population. |
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The organisms generally live in close relationship with the substrate bottom and many are permanently attached to the bottom. |
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Benthos are the organisms that live in the benthic zone, and are different from those elsewhere in the water column. |
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Biogenic gas is created by methanogenic organisms in marshes, bogs, landfills, and shallow sediments. |
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Aquatic organisms invariably attach themselves to the undersea portions of oil platforms, turning them into artificial reefs. |
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Nourishment may cause direct mortality to sessile organisms in the target area by burying them under the new sand. |
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As with all offshore renewable energies, there is also a concern about how the creation of EMF and acoustic outputs may affect marine organisms. |
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Biochemical sedimentary rocks are created when organisms use materials dissolved in air or water to build their tissue. |
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Fossils can be both the direct remains or imprints of organisms and their skeletons. |
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Most commonly preserved are the harder parts of organisms such as bones, shells, and the woody tissue of plants. |
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Imprints of organisms made while they were still alive are called trace fossils, examples of which are burrows, footprints, etc. |
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The shallow, warm water is an ideal habitat for many small organisms that build carbonate skeletons. |
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When these organisms die, their skeletons sink to the bottom, forming a thick layer of calcareous mud that may lithify into limestone. |
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Biodiversity can be defined genetically as the diversity of alleles, genes and organisms. |
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Measuring diversity at one level in a group of organisms may not precisely correspond to diversity at other levels. |
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The study of the spatial distribution of organisms, species and ecosystems, is the science of biogeography. |
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Many cultures view themselves as an integral part of the natural world which requires them to respect other living organisms. |
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The general public responds well to exposure to rare and unusual organisms, reflecting their inherent value. |
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The authors note that these estimates are strongest for eukaryotic organisms and likely represent the lower bound of prokaryote diversity. |
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The exotic organisms may be predators, parasites, or may simply outcompete indigenous species for nutrients, water and light. |
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But unlike retroviruses, retroelements don't move to other cells or organisms. |
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These movements are thought to be in response to the vertical migrations of prey organisms in the deep scattering layer. |
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Genetically modified organisms contain genetic material that is altered through genetic engineering. |
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These organisms are classified as a kingdom, Fungi, which is separate from the other eukaryotic life kingdoms of plants and animals. |
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Plants and some other organisms have an additional terpene biosynthesis pathway in their chloroplasts, a structure fungi and animals do not have. |
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The fungi are traditionally considered heterotrophs, organisms that rely solely on carbon fixed by other organisms for metabolism. |
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Fungal reproduction is complex, reflecting the differences in lifestyles and genetic makeup within this diverse kingdom of organisms. |
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Many fungi have important symbiotic relationships with organisms from most if not all Kingdoms. |
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The combined lichen has properties different from those of its component organisms. |
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The photobionts in lichens come from a variety of simple prokaryotic and eukaryotic organisms. |
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True multicellular organisms formed as cells within colonies became increasingly specialized. |
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Thus aquatic plants, algae, and other photosynthetic organisms can live in water up to hundreds of meters deep, because sunlight can reach them. |
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Many substances in living organisms, such as proteins, DNA and polysaccharides, are dissolved in water. |
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Mop heads attached to the wooden plank would sweep across the sea floor and release organisms from the ocean bottom to be caught in the nets. |
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Trawls were large metal nets towed behind the ship to collect organisms at different depths of water. |
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Furthermore, atlases of anatomy exist, mapping out organs of the human body or other organisms. |
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The Greenland Sea is densely inhabited by the organisms that form the base of the oceanic food chain. |
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When this happens, the coral organisms are smothered and the reef dies and ultimately breaks apart. |
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In these platforms precipitation is biotically controlled, mostly by autotrophic organisms. |
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Those species that were able to adapt may have been the ancestors of the organisms currently endemic to the Challenger Deep. |
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Intertidal organisms experience a highly variable and often hostile environment, and have adapted to cope with and even exploit these conditions. |
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The approximately fortnightly tidal cycle has large effects on intertidal and marine organisms. |
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Oceanic and atmospheric currents transfer particles, debris, and organisms all across the globe. |
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Their results indicated that they feed on various planktonic organisms, but especially microscopic jellyfish. |
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They feed on crustaceans, aquatic insects, small insects, and probably any aquatic organisms that they can find and eat. |
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Such an event is identified by a sharp change in the diversity and abundance of multicellular organisms. |
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Mass extinctions seem to be a mainly Phanerozoic phenomenon, with extinction rates low before large complex organisms arose. |
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The emergence of South American organisms is due to the widening of that organisms' ecological niche. |
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Stomach analysis has also shown that the diet consists mostly of pelagic or bathypelagic organisms. |
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Filter feeding fish usually use long fine gill rakers to strain small organisms from the water column. |
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This turned out to be due to millions of marine organisms, most particularly small mesopelagic fish, with swimbladders that reflected the sonar. |
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These organisms migrate up into shallower water at dusk to feed on plankton. |
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Eastern oysters are filter feeders, so they are greatly affected by their surroundings since they are sessile organisms. |
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The mixed layer is also important as its depth determines the average level of light seen by marine organisms. |
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These beads are harmful to the organisms in the ocean, especially filter feeders, because they can easily ingest the plastic and become sick. |
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Noise from ships and human activity can damage Cnidarians and Ctenophora, which are very important organisms in the marine ecosystem. |
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Humans are able to create new and complex ideas, and to develop technology, which is unprecedented among other organisms on Earth. |
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Dead zones are reversible, though the extinction of organisms that are lost due to its appearance is not. |
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These three can be found worldwide and each contains a different set of organisms. |
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This is also the case for other groups of organisms such as green algae, red algae, diatoms, brawn algae, rotifers, peronosporales, insects, etc. |
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It is probably derived from sponge spicules or other siliceous organisms as water is expelled upwards during compaction. |
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Mammals are hunted or raced for sport, and are used as model organisms in science. |
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Genetically modified organisms are an increasing component of agriculture, although they are banned in several countries. |
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Water by itself does not harm the wood, but rather, wood with consistently high moisture content enables fungal organisms to grow. |
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The capture, transportation and culture of bait fish can spread damaging organisms between ecosystems, endangering them. |
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While a few organisms can grow at the initial site of entry, many migrate and cause systemic infection in different organs. |
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Frequent hand washing remains the most important defense against the spread of unwanted organisms. |
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A polythetic taxon is one where the constituent organisms share a large number of characteristics. |
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Additionally, the color of the rocks can affect the organisms living on a shore. |
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The progenote model sees organisms as genetically communal and the community as evolving as a whole, not the individual cell lines therein. |
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More seriously, the organisms that can cause spontaneous enzootic abortion in sheep are easily transmitted to pregnant women. |
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Given a warmer climate, the diversity of organisms is also higher, since there are about 850 plant species and 280 vertebrates species. |
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Thus, these organisms have developed means to absorb iron as complexes, sometimes taking up ferrous iron before oxidising it back to ferric iron. |
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However, if neither of these organisms is isolated, it is necessary to send stool specimens to a reference laboratory. |
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Palynology does not include diatoms, foraminiferans or other organisms with siliceous or calcareous exoskeletons. |
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This type of tranquillity is believed to bless those organisms which are unawakenable to the vicissitudes of experience. |
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An acid-fast stain was performed on the colonies, and the organisms were variably positive. |
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Comparative toxicity of chlordane, chlorpyrifos, and aldicarb to four aquatic testing organisms. |
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These data suggest that an allylic side chain seems to enhance the inhibitory effects of monterpenes and chiefly against Gram-negative organisms. |
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Testate amoebae are unicellular organisms that live in various aquatic environments, being especially numerous in Sphagnum peats. |
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The team added samples of permafrost to dishes containing amoebas and then waited to see if the one-celled organisms died. |
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Subsequent histologic examination of skin biopsy specimens from all patients showed granulomas and yeastlike organisms. |
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Mucormycosis is an infection by fungal organisms from the class Zygomycetes, most commonly those within the order Mucorales. |
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These are keratinophilic organisms, and, as such, they invade keratinized tissues, including the stratum corneum, tile hair, and the nails. |
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The most commonly observed fouling organisms were ascidians, sponges, barnacles, tunicates, and mussels. |
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Lanier says the fossil myxobacteria have the same shapes as the living organisms. |
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The novel use of this tool is that organisms that share a specific retrotransposon integration should share a common ancestor. |
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The simple thalloid and leafy liverwort clade is a morphologically diverse and speciose group of organisms. |
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The organisms also grew on chocolate agar and were positive for catalase and lecithinase. |
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Ribonucleotide reductase catalyzes the critical conversion of ribonucleotides to deoxyribonucleotides in all organisms. |
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Beaklike mouthparts can gouge substantial divots as bumpheads swallow coral to get at the tasty organisms hidden within. |
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Mass produce food organisms and rotifer for the consumption of two million milkfish fry. |
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Mycogen has isolated Bt strains toxic to non-insect organisms such as protozoan pathogens, mites and liver flukes. |
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Removing parts of the sea floor disturbs the habitat of benthic organisms, possibly, depending on the type of mining and location, causing permanent disturbances. |
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In the 18th century, the Swedish scientist Carl Linnaeus classified organisms according to shared physical characteristics, and not simply based upon differences. |
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Upwelling is an important process because this water from within and below the pycnocline is often rich in nutrients and greatly benefits the growth of marine organisms. |
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A single evolutionary lineage of organisms within which genes can be shared, and that maintains its integrity with respect to other lineages through both time and space. |
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Bronchoscopy and bronchoalveolar lavage demonstrated one colony of fungal organisms from the genus Paecilomyces, and a regimen of Augmentin and voriconazole was initiated. |
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Luis Leloir discovered how organisms store energy converting glucose into glycogen and the compounds which are fundamental in metabolizing carbohydrates. |
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Remains of organisms found within sediment layers near the mouth of the Mississippi River indicate four hypoxic events before the advent of artificial fertilizer. |
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