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This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..

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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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Hormones are essential in the regulation of the activity of the various biological systems of the human body. The ineffi..

Human Neurology
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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While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..

Early Mammals on Earth
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The Earth's ecosphere was rapidly changing and throwing up a wide range of ecological niches that new adaptive organisms..