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This tutorial introduces flowing water communities, which bring new and dithering factors into the equation for possible..

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Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..

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If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..

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Control of Body Movement

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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Genes are expressed through the process of protein synthesis. This elaborate tutorial provides an in-depth review of the..

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The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..