Which is more efficient in propelling intestinal contents along the digestive tract: peristalsis or segmentation? Why?
A) segmentation; because it involves pushing the bolus forward
B) segmentation; because it involves mixing and churning
C) peristalsis; because it involves pushing the bolus forward
D) peristalsis; because it involves mixing and churning
E) both segmentation and peristalsis are equally effective at propelling intestinal contents along the digestive tract
Answer: C
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Fill in the blank(s) with the appropriate word(s).
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Structure G
A) releases milk.
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C) releases sweat.
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