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Organisms employ different strategies to boost its defenses against antigens. Humans have an immune system to combat pat..

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The endoplasmic reticulum and Golgi apparatus are the organelles involved in the translation step of protein synthesis a..

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

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A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..

Types and Causes of Brain Damage
Types and Causes of Brain Damage

This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..

Regulation of Biological Systems
Regulation of Biological Systems

Regulation of Biological Systems tutorials are focused on the modulation of biological systems from cell to population l..