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Plantlife can be studied at a variety of levels, from the molecular, genetic and biochemical level through organelles, c..

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Different mental disorders are described here. Read this tutorial to get an overview of schizophrenia, affective mood di..

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Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..

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