Biology (11th Edition)

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

Chapter 22 - The Origin of Species - Review Questions - Synthesize: 3


The color difference reinforces the species difference in areas of sympatry, which might otherwise be confused by pollinators, leading to wasteful hybridization.

Work Step by Step

Think about how the flower color is similar between the species in the allopatric case but not the sympatric case. This points to the need to distinguish the flowers better with sympatry--in this case, so that character displacement leads to different pollinators using the different species' flowers, avoiding hybridization.
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