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

Transpiration
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The movement of molecules (specifically, water and solutes) is vital to the understanding of plant processes. This tuto..

IQ, Creativity and Learning
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Human intelligence provided the means to utilize abstract ideas and implement reasoning. This tutorial takes a further l..

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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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The human respiratory system is an efficient system of inspiring and expiring respiratory gases. This tutorial provides ..

Biosecurity and Biocontrol
Biosecurity and Biocontrol

This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..