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Myelin sheath is essential for a faster conductivity of signals. Know more about this feature of some neurons in the Cen..

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A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..

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Human Biology – Food and Digestion

This tutorial recognizes the importance of food as a source of energy that will fuel many biological processes. A good d..

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Biosecurity and Biocontrol

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

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Plant Meristems and Growth

In plants, growth occurs in meristems, which are the site of repeated cell division of unspecialized cells. These cells ..