Myxine

Obtaining air outside an aquatic environment required species to acquire suitable adaptations, and this was the case of ..

Geological periods is a study guide that cites the different geological periods on Earth's timeline. Each has a brief ov..

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

Learn about community patterns and the ecological factors influencing these patterns. Revisit some of the ecosystems you..

Bryophytes (nonvascular plants) are a plant group characterized by lacking vascular tissues. They include the mosses, th..

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

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