WAEC Biology 2010 Question 17

Question 17

Support and Movement

The ear pinna is strengthened by

  1. A.blood pressure.
  2. B.cartilage.
  3. C.bone.
  4. D.turgor pressure.
Show the answer and explanation

Answer: B (cartilage.)

Explanation

The pinna (outer ear flap) is supported by flexible elastic cartilage.