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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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According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..

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In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..

Physiological Homeostasis
Physiological Homeostasis

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

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This tutorial digs into the past to investigate the origins of life. The section is split into geological periods in the..

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Cell Respiration

Cell respiration is the process of creating ATP. It is "respiration" because it utilizes oxygen. Know the different stag..