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JAMB Biology 1999 Question 17

Question 17

Transport in Animals

Mammals acclimatize to reduced oxygen content at high altitudes by

  1. A.the stimulation of marrow to reduce the amount of erythrocytes produced
  2. B.increasing the rate at which erythrocytes are destroyed
  3. C.the stimulation of marrow to produce more erythrocytes
  4. D.increasing the break down of the protein portion of the erythrocytes.
Show the answer and explanation

Answer: C (the stimulation of marrow to produce more erythrocytes)

Explanation

With less oxygen in the air, bone marrow produces more red blood cells so the blood can still carry enough oxygen.