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Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains matu..

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Illusions are the perceptions and sensory data obtained from situations in which human error prevents us from seeing the..

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

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Water in Plants

The movement of molecules (specifically, water and solutes) is vital to the understanding of plant processes. This tuto..

Population Regulation in an Ecosystem
Population Regulation in an Ecosystem

With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..