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Bryophytes are a plant group characterized by being nonvascular. They include the mosses, the liverworts, and the hornwo..

Origins of Life on Earth
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Earth was created around 4.5 billion years ago and life began not long after. Primitive life likely possessed the elemen..

Neural Control Mechanisms
Neural Control Mechanisms

Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..

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This tutorial introduces flowing water communities, which bring new and dithering factors into the equation for possible..

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Myelin sheath is essential for a faster conductivity of signals. Know more about this feature of some neurons in the Cen..

Developmental Biology
Developmental Biology

Developmental biology is a biological science that is primarily concerned with how a living thing grows and attains matu..