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A balanced diet is essential to a healthy organism. Insufficiency or too much of a particular element or compound, such ..

Physiological Homeostasis
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Homeostasis is essential to maintain conditions within the tolerable limits. Otherwise, the body will fail to function p..

Regulation of Biological Systems
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Regulation of Biological Systems tutorials are focused on the modulation of biological systems from cell to population l..

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Meiosis and Alternation of Generations

Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..

Sugar Homeostasis
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The blood sugar level is regulated by two hormones. The mechanism behind this type of negative feedback control is descr..