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The sea was teeming with life. Eventually, through reproduction and continued variation, fish came about. There are over..

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Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..

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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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Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..

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This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..