Biology 2010 Student Edition

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

Chapter 30, Digestive and Excretory Systems - Assessment - 30.3 The Digestive System - Understand Key Concepts - Page 890: 14



Work Step by Step

Option a. is incorrect. Digestion does not take place in the esophagus. Option b. is incorrect. In the large intestine, undigested materials are deposited and eventually eliminated at feces. Option d. is incorrect. The small intestine is the site where absorption of nutrients mainly takes place. Option c. is correct. The mouth is where mechanical digestion starts. This process breaks bigger food molecules into smaller ones.
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