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Hormones are produced in the endocrine glands of animals. The pituitary gland and hypothalamus are the most impor..

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Still Freshwater & Plants

Plants in lentic habitats have features not found in terrestrial plants. They acquired these features as they adapt to t..

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The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..

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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..

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

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Genes are expressed through the process of protein synthesis. This elaborate tutorial provides an in-depth review of the..