Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 4, Ecosystems and Communities - 4.2 - Niches and Community Interactions - 4.2 Assessment - Page 104: 4a


Symbiosis is a close relationship between two organisms. The three types of symbioses are mutualism, parasitism, and commensalism.

Work Step by Step

In mutualism, both organisms derive benefits from the relationship. With parasitism, one organism is harmed while the other benefits. In commensalism, one organism benefits while the other is neither helped nor harmed.
Update this answer!

You can help us out by revising, improving and updating this answer.

Update this answer

After you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.