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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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Nutrients in the soil are essential to the proper growth of a land plant. This tutorial deals with the properties of soi..

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The nervous system is essentially a biological information highway. This tutorial gives an overview of the nervous syste..

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The blood sugar level is regulated by two hormones. The mechanism behind this type of negative feedback control is descr..

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Consciousness and Behavior

Human consciousness and behavior are an interesting topic since they are determined and controlled by the brain. Conscio..

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