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

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Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..

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This tutorial presents Gregor Mendel's law of dominance. Learn more about this form of inheritance and how it can be pre..

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Meiosis and Alternation of Generations

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There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..