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Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..

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

Ecosystem Succession
Ecosystem Succession

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

Freshwater Ecology
Freshwater Ecology

Freshwater ecology focuses on the relations of aquatic organisms to their freshwater habitats. There are two forms of co..

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

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Temperature Regulation in Animals

This tutorial elucidates body temperature regulation. Know the details here to learn how the body sets the body temperat..