Campbell Biology (12th Edition)

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

Chapter 34 - 34.1 - Concept Check - Page 722: 3

Answer

All groups to the right of the mark should have lungs or similar structures.

Work Step by Step

The mark indicates the development of lungs (or similar structures), so it would be expected that creatures after it in this evolutionary chain would have such structures.
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