Biology 2010 Student Edition

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

Chapter 16, Darwin's Theory of Evolution - Assessment - 16.3 Darwin Presents His Case - Understand Key Concepts - Page 176: 17



Work Step by Step

The ability of an organism to survive and reproduce in a certain environment is called its fitness. Even if an organism is apparently healthy, it may have low fitness because it does not have viable offspring.
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