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Cell respiration is the process of creating ATP. It is "respiration" because it utilizes oxygen. Know the different stag..

In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..

Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..

This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..

The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..

This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..

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