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The body is comprised of different elements with hydrogen, oxygen, carbon, and nitrogen as the major four. This tutorial..

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While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..

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Plant organs are comprised of tissues working together for a common function. The different types of plant tissues are m..

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With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..

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The Gene Pool and Population Genetics

According to Charles Darwin's theory of natural selection, preferable genes are favored by nature in the gene pool, and ..

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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..