| His perspective provides a framework for understanding the impact of xenobiotic substances on development and reproduction. |
| An allelopathic plant releases potentially toxic substances into the environment through its roots, its leaves or processes such as evaporation. |
| These plaques can rupture, releasing substances that cause blood flowing in the coronary artery to clot. |
| It is often the substances used to bulk up heroin that prove most harmful and cause allergic or toxic reactions. |
| I am quite capable of researching the effects of both substances for myself. |
| By this process, a highly efficient separation of substances can be achieved. |
