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WAEC Biology 2013 Question 45

Question 45

Animal Nutrition

The absence of alimentary canal in the parasitic flatworm can be attributed to the fact that

  1. A.its body does not feed.
  2. B.it has no enzymes.
  3. C.its body absorbs digested food.
  4. D.it has suckers on the scolex.
Show the answer and explanation

Answer: C (its body absorbs digested food.)

Explanation

A tapeworm lives in already-digested food in the host's gut and absorbs it through its body surface, so it needs no gut.