Life: The Science of Biology 11th Edition

Published by W. H. Freeman
ISBN 10: 1-31901-016-4
ISBN 13: 978-1-31901-016-4

Chapter 56 - Communities - 56.4 - Communities Are Always Changing - 56.4 Recap - Learning Outcomes - Page 1222: 2

Answer

Dryas and alders commonly facilitate succession, since these organisms fix nitrogen and allow for a base which other succeeding organisms live off of. Other pioneer organisms such as lichen are able to survive in extreme environments and photosynthesize organic molecules.

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