Biology 2010 Student Edition

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

Chapter 27, Animal Systems I - Assessment - 27.4 Excretion - Understand Key Concepts - Page 803: 26



Work Step by Step

Option b. is incorrect. Circulation is the transport of oxygen and nutrients to all parts of the body. Option c. is incorrect. Respiration is the process of taking in oxygen and getting rid of carbon dioxide from the body. Option d. is incorrect. Digestion is the breakdown of food for an organism's energy needs. Option a. is correct. Excretion eliminates metabolic wastes from the body.
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