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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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Control of Growth & Development tutorials look at how the genetic makeup determines the biological processes on a da..

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New Zealand’s Unique Flora

If New Zealand has lots of unique animals, it's also got a whole lot of unique plants. Find out more about some of them,..

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A Balanced Vitamin Diet – Vitamins A – K

A balanced diet is essential to a healthy organism. Insufficiency or too much of a particular element or compound, such ..

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Sensory Systems

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