Antivitamin
a substance that prevents a vitamin from exerting its typical biological effects. Most antivitamin’s have chemical structures similar to vitamins (e.g., pyridoxine and its antivitamin, deoxypyridoxine) and appear to function as competitive antagonists; some antivitamin’s produce effects, in addition, that are unrelated to vitamin antagonism.
This tutorial elaborates on the physical development of humans, particularly from puberty to adulthood. Read this tutori..
There are many environmental factors that arise due to the usage of water in one way or another and for every action tha..
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This tutorial noted some of the physical and chemical factors that provide the framework of a running water community in..