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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 circulatory system is key to the transport of vital biomolecules and nutrients throughout the body. Learn about the ..

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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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Genetic Engineering Advantages & Disadvantages

This tutorial presents the benefits and the possible adverse eventualities of genetic engineering. Know more about this ..

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Sugar Homeostasis

The blood sugar level is regulated by two hormones. The mechanism behind this type of negative feedback control is descr..

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Kidneys and Regulation of Water and Inorganic Ions

The kidneys are responsible for the regulation of water and inorganic ions. Read this tutorial to learn about the differ..