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According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..

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Animals adapt to their environment in aspects of anatomy, physiology, and behavior. This tutorial will help you understa..

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

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The evolution of the species of the genus "Homo" led to the emergence of modern humans. Find out more about human evolut..