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Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..

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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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This tutorial describes the sigmoid curve, annual plant growth, tree growth, human growth, and insect growth as the grow..

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Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..

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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..

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This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..