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For human species to obviate extinction, reproductive mature adults should be producing viable offspring in order to con..

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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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Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains matu..

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This tutorial elaborates on the physical development of humans, particularly from puberty to adulthood. Read this tutori..

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