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JAMB Biology 1990 Question 21

Question 21

Animal Nutrition

The villus in the small intestine is significant because it

  1. A.increases the surface area for absorption
  2. B.increases the surface area for digestion
  3. C.assists in mixing digested food
  4. D.assists in filtering undigested food
Show the answer and explanation

Answer: A (increases the surface area for absorption)

Explanation

Millions of finger-like villi give the small intestine a huge surface for absorbing digested food.