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

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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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Animal Growth Hormones

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

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Gene Action – Operon Hypothesis

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