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JAMB Biology 1981 Question 49

Question 49

Animal Nutrition

The correct route for a piece of bread eaten by a mammal is

  1. A.oral cavity-oesophagus-stomach-ileum-rectum
  2. B.oral cavity -stomach-oesophagus-duodenum-ileum-rectum
  3. C.oral cavity-oesophagus-duodenum-stomach-ileum-rectum
  4. D.oral cavity-oesophagus-ileum - stomach -duodenum-rectum
  5. E.oral cavity-oesophagus-stomach-ileum-duodenum-rectum.
Show the answer and explanation

Answer: A (oral cavity-oesophagus-stomach-ileum-rectum)

Explanation

Food passes from the mouth down the oesophagus to the stomach, then the small intestine (ileum) and on to the rectum; only A has this order.