21.
The stomach:
A
does chemical digestion only
B
does mechanical digestion only
C
does both chemical and mechanical digestion
D
starts the chemical digestion of starchy foods
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The stomach:
does chemical digestion only
does mechanical digestion only
does both chemical and mechanical digestion
starts the chemical digestion of starchy foods
Heartburn is usually cause
by effects of gastric juice on the small intestine
stomach
heart
esophagus
What constituent of bile has a digestive function?
bile salts
cholesterol
bile pigments
electrolytes