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Multicellular organisms evolved. The first ones were likely in the form of sponges. Multicellularity led to the evolutio..
This tutorial describes the different types and causes of brain damage. Find out how genetics, physical injury, lack of ..
Lotic communities have conditions that are rather harsh for typical plants. Thus, the diversity of plant species in loti..
Neurons generate electric signals that they pass along to the other neurons or target tissues. In this tutorial, you wil..