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Genes are expressed through the process of protein synthesis. This elaborate tutorial provides an in-depth review of the..

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Ferns and their relatives are vascular plants, meaning they have xylem and phloem tissues. Because of the presence of va..

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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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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..

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Principles of Hormonal Control Systems

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

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This tutorial investigates the genetic diversity in more detail. It also delineates how certain alleles are favored over..