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Planktons are microscopic organisms that live suspended in aquatic habitats. There are two groups: the phytoplanktons an..

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There are more species of insects than any other species combined. This surely illustrates that insects have the selecti..

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Human Neurology

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

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A Balanced Vitamin Diet – Vitamins A – K

A balanced diet is essential to a healthy organism. Insufficiency or too much of a particular element or compound, such ..

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Stems

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