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Following nine months inside the mother's womb is the birth of the baby. Know the different stages of the birthing proce..

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Seed plants are vascular plants. They differ from the other vascular plants in producing seeds that germinate into a new..

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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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Meiosis – The Genetics of Reproduction

Meiosis is a form of cell division that creates gametes. It is comprised of two divisions that in the end, the resulting..

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Biological Cell Defense

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

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Roots

This study guide tackles plant roots in greater detail. It delves into the development of plant roots, the root structur..