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Proteins and minerals can be derived from various dietary sources. They are essential for the proper growth and developm..

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Meet the colorful takahē, an extremely rare flightless bird. Find out more about its unique features and why they matte..

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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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This tutorial looks at some of the communities in freshwater lentic habitats. For instance, symbiosis occurs in a commun..

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Chemical Composition of the Body

The body is comprised of different elements with hydrogen, oxygen, carbon, and nitrogen as the major four. This tutorial..

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Adaptation Tutorial

Adaptation, in biology and ecology, refers to the process or trait through which organisms or the populations in a habit..