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WAEC Biology 2022 Question 18

Question 18

Sense Organs

The diagram is an illustration of some parts of a mammalian ear.
The middle ear is connected to the pharynx by the part labelled

Diagram for this question
  1. A.I
  2. B.II
  3. C.III
  4. D.IV
Show the answer and explanation

Answer: C (III)

Explanation

The Eustachian tube runs from the middle ear down to the pharynx and equalises air pressure on both sides of the eardrum.