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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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Hormones are chemical messengers produced by specialized glands and they were produced by switching on the genes designe..

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Stems primarily provide plants structural support. This tutorial includes lectures on the external form of a woody twig ..

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Explore why New Zealand has such unique flora and fauna, and learn why long periods of geographical isolation. This less..

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Meiosis – The Genetics of Reproduction

Meiosis is a form of cell division that creates gametes. It is comprised of two divisions that in the end, the resulting..

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Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..