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WAEC Biology 1998 Question 23

Question 23

Sense Organs

The organ responsible for equalising air pressure in the ear is the

  1. A.sacculus
  2. B.utriculus
  3. C.Eustachian tube
  4. D.ampulla
  5. E.air ossicle
Show the answer and explanation

Answer: C (Eustachian tube)

Explanation

The Eustachian tube joins the middle ear to the throat, so air pressure on both sides of the eardrum stays equal.