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JAMB Biology 1997 Question 6

Question 6

Animal Kingdom

Annelids differ from nematodes in that they

  1. A.exhibit bilateral symmetry
  2. B.are triploblastic
  3. C.are metamerically segmented
  4. D.possess complete digestive system.
Show the answer and explanation

Answer: C (are metamerically segmented)

Explanation

Both groups are bilateral, triploblastic and have a complete gut, but only annelids have a body divided into repeated segments (metameric segmentation).