Chapter 21: Nutrition and Digestion
Animations
21.1: Activity: Digestion and absorption of food
Test your recall for figure 21.3 with this key figure labeling exercise.
21.2: Activity: The human digestive system
Test your recall for figure 21.7 with this key figure labeling exercise.
21.3: Activity: The typical digestive system
Test your recall for figure 21.9 with this key figure labeling exercise.
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