
Select your answer:

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Digestive System › ViewAn enzyme in the stomach that breaks down protein
A. Vitamin
B. Pepsin
C. Amylase
D. Saliva
Digestive System › View
pylorospasm
A. Involuntary contraction of the pyloric sphincter.
B. Narrowing of the pyloric sphincter.
C. No opening of the esophagus (into the stomach).