Answer
D
Work Step by Step
A type of feathered dinosaur eventually gave rise to the bird lineage. Feathers may have evolved from a need for the animals to keep themselves warm.
Biology 2010 Student Edition
by Miller, Kenneth R.; Levine, Joseph S.
Published by
Prentice Hall
ISBN 10:
9780133669510
ISBN 13:
978-0-13366-951-0
Chapter 26, Animal Evolution and Diversity - Standardized Test Prep - Page 779: 5
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