Biology 2010 Student Edition

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

Chapter 25, Introduction to Animals - Assessment - 25.1 What is an Animal? - Understand Key Concepts/Think Critically - Page 746: 4

Answer

d.

Work Step by Step

Option a. is incorrect. Invertebrates have no vertebral column. Option b. is incorrect. Prokaryotes are not animals. Option c. is incorrect. Homeostasis is the maintenance of a constant internal environment. Option d. is correct. Vertebrates have a vertebral column.
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