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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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This lesson is about the methods used for ecological research, such as quadrat and transect sampling, canopy fogging, an..

Ploidy
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Humans are diploid creatures. This means that for every chromosome in the body, there is another one to match it. Howeve..

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Apart from vitamins, the human body also requires high energy sources such as carbohydrates and fats. If you want an ove..

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