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Leaves are the major photosynthetic organ of a plant. Apart from that, they are also crucial to water movement. In this ..

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In this tutorial, the works of Carl Gustav Jung and Sigmund Freud are described. Both of them actively pursued the way h..

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Molecules move within the cell or from one cell to another through different strategies. Transport may be in the form of..

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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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Lentic or still water communities can vary greatly in appearance -- from a small temporary puddle to a large lake. The s..