Biology 2010 Student Edition

Published by Prentice Hall
ISBN 10: 9780133669510
ISBN 13: 978-0-13366-951-0

Chapter 28, Animal Systems II - Standardized Test Prep - Page 837: 8

Answer

A

Work Step by Step

Option A is incorrect. Neither fish nor amphibians are endothermic. Option C is incorrect. Reptiles are not endothermic. Option D is incorrect. Not all vertebrates are endothermic. Amphibians, reptiles, and fish are ectothermic. Option B is correct. Both birds and mammals are endothermic, meaning they generate their own heat internally.
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