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Humans are capable of only one mode of reproduction, i.e. sexual reproduction. Haploid sex cells (gametes) are produced ..

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Upon fertilization, a zygote forms and develops into an embryo. This tutorial elaborates on the growth and development f..

Sigmund Freud and Carl Gustav Jung
Sigmund Freud and Carl Gustav Jung

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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A still body of water may be disturbed by a variety of factors. One of them is wind. In fact, it is considered as the pr..