In the Process of Peristalsis

Multiple Choice

In the process of peristalsis:

A) waves of muscular contractions force food down the digestive tract.
B) chemical digestion of food takes place in the digestive tract.
C) food is discharged from the bodies of unicellular animals.
D) digestion occurs intracellularly within food vacuoles.
E) digestion of food takes place outside the body of an animal.