The small intestine is well adapted to absorb food. Which feature increases its surface area?
Answer and explanation
Correct answer: A. Villi on the inner lining
- Step 1: Villi are finger-like projections.
- Step 2: They give a large area for absorption of digested food.
Answer
Villi on the inner lining.
Why not the others: A thick muscular wall: this moves food along. Acid secretions: this describes the stomach. A narrow diameter: this does not increase surface area.
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