BIOLOGY W/CONNECT >IP<
BIOLOGY W/CONNECT >IP<
11th Edition
ISBN: 9781259910487
Author: Raven
Publisher: MCG CUSTOM
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Chapter 35, Problem 9U

Which of the following evolutionary adaptations allows the birds to become efficient at flying?

a. Structure of the feather

b. High metabolic temperatures

c. Increased respiratory efficiency

d. All of the choices are correct.

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