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Homeostasis is essential to maintain conditions within the tolerable limits. Otherwise, the body will fail to function p..

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

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Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..

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Plant cells have plastids essential in photosynthesis. They also have an additional layer called cell wall on their cell..

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The Conscious & Unconscious Nervous System

This tutorial elaborates on how the nervous system works, particularly at the tissue level of the brain. There are three..

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Dinosaurs represented a major turn in the evolutionary development of organisms on Earth. The first dinosaurs were presu..