WAEC Biology 2005 Question 9

Question 9

Evolution

Which of these organs can be considered vestigial in humans but functional in other mammals? The

  1. A.liver
  2. B.appendix
  3. C.rectum
  4. D.stomach
Show the answer and explanation

Answer: B (appendix)

Explanation

The human appendix has no clear use, but in herbivores such as rabbits the appendix and caecum help digest cellulose.