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This tutorial describes the independent assortment of chromosomes and crossing over as important events in meiosis. Read..

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If New Zealand has lots of unique animals, it's also got a whole lot of unique plants. Find out more about some of them,..

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A running water environment offers numerous microhabitats for many types of animals. Similar to plants, animals in lotic..

Sensory systems
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A sensory system is a part of the nervous system consisting of sensory receptors that receive stimuli from the internal ..

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..

Homeostatic Mechanisms and Cellular Communication
Homeostatic Mechanisms and Cellular Communication

Homeostasis is the relatively stable conditions of the internal environment that result from compensatory regulatory res..