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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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Human Neurology deals essentially with the nervous system of humans. It also features the various theories put forward b..

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Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..

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

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Muscle cells are specialized to generate force and movement. Learn about the different types of muscle tissues in this t..