Answer
A sea star is an example of a keystone species that has dramatic effects on its ecosystems. By keeping the mussel population in check, sea stars indirectly protect 18 species of aquatic animals and algae.
Work Step by Step
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Life: The Science of Biology 11th Edition
by Sadava, David E.; Hillis, David M.; Heller, H. Craig; Hacker, Sally D.
Published by
W. H. Freeman
ISBN 10:
1-31901-016-4
ISBN 13:
978-1-31901-016-4
Chapter 56 - Communities - 56.2 - Community Membership Depends on Species Supply, Environmental Conditions, and Species Interactions - 56.2 Recap - Learning Outcomes - Page 1212: 1
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