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Molecules move within the cell or from one cell to another through different strategies. Transport may be in the form of..

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Some of the body movements can be controlled at will, others cannot. The body has a motor program, which is the pattern ..

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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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Myelin sheath is essential for a faster conductivity of signals. Know more about this feature of some neurons in the Cen..

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