Biology
Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Chapter 46, Problem 5A

Swimming underwater using forelimbs for propulsion is similar to flying through the air because

a. birds are the only class of vertebrates that have species that do both.

b. both involve coordinating movements of the forelimbs and hindlimbs.

c. both must counter strong forces caused by friction.

d. both involve generating lift by pushing down on the air or water to counter gravity.

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