Biology for IGCSE & O level - Human Nutrition (Section 4 - No. 31)
Which of these contribute to the efficient absorption of food?
A large surface area in the small intestine
The presence of villi and microvilli
A short length of the small intestine
The action of digestive enzymes
Explanation
Villi and microvilli increase surface area, and digestive enzymes help the absorption.
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