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JAMB Biology 2012 Question 4

Question 4

Animal Kingdom

Which of the following is most advanced in the evolutionary trend of animals?

  1. A.Liverfluke.
  2. B.Earthworm.
  3. C.Snail.
  4. D.Cockroach.
Show the answer and explanation

Answer: D (Cockroach.)

Explanation

Arthropods such as the cockroach have jointed legs, an exoskeleton and a well-developed nervous system, so they are more advanced than flatworms, annelids and molluscs.