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Freshwater ecosystem is comprised of four major constituents, namely elements and compounds, plants, consumers, and deco..

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This tutorial deals with the abiotic factors of the freshwater environment that determine what sort of life would be sui..

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Plants protect themselves by releasing hydrogen peroxide to fight against fungal invasion. Another way is by secreting c..

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Inheritance and Probability

Gregor Mendel, an Austrian monk, is most famous in this field for his study of the phenotype of pea plants, including ..

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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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Birth Control and Contraception

Different pregnancy and birth control and contraception strategies are described. Read this tutorial to learn each of th..