Campbell Biology (12th Edition)

Published by Pearson
ISBN 10: 0135188741
ISBN 13: 978-0-13518-874-3

Chapter 54 - 54.1 - Concept Check - Page 1221: 3

Answer

Reinforced.

Work Step by Step

Since the two different food sources are isolated from one another, the two finch varieties are not likely to often come in contact with finches from the other group to reproduce. This is a significant reproductive barrier between them.
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