Biology (11th Edition)

Published by McGraw-Hill Education
ISBN 10: 1-25918-813-2
ISBN 13: 978-1-25918-813-8

Chapter 25 - Evolution of Development - Review Questions - Synthesize: 2

Answer

Though new patterns can appear quickly, it can take time, given the back-and-forth nature of selection, for these changes to become common in a population.

Work Step by Step

Review earlier material (other chapters) on how selection works and how long it can take to change a whole population, in part due to how environmental changes can lead to frequent shifts in the direction of natural selection.
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