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This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..

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It only takes one biological cell to create an organism. A single cell is able to keep itself functional through its 'mi..

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The circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..

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Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..