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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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The cell is defined as the fundamental, functional unit of life. Some organisms are comprised of only one cell whereas o..

Adaptive Radiation
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The diversification of several new species from a recent ancestral source, each adapted to utilize or occupy a vacant ad..

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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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A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..

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Plant Meristems and Growth

In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..