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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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Proteins and minerals can be derived from various dietary sources. They are essential for the proper growth and developm..

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Plant Biology

Plantlife can be studied at a variety of levels, from the molecular, genetic and biochemical level through organelles, c..

Ecosystem Succession
Ecosystem Succession

If the balance of nature is left untouched, landscapes can change dramatically over time. A previous ecosystem is supers..

The Human Physiology
The Human Physiology

Physiology is the study of how living organisms function. Thus, human physiology deals specifically with the physiologic..

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