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Osmoregulation is the regulation of water concentrations in the bloodstream, effectively controlling the amount of water..

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This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..

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Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

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Plantlife can be studied at a variety of levels, from the molecular, genetic and biochemical level through organelles, c..

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The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..

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Proteins and minerals can be derived from various dietary sources. They are essential for the proper growth and developm..