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Mammals acclimatize to reduced oxygen content at high altitudes by

Biology
JAMB 1999

Mammals acclimatize to reduced oxygen content at high altitudes by

  • A. the stimulation of marrow to reduce the amount of erythrocytes produced
  • B. increasing the rate at which erythrocytes are destroyed
  • C. the stimulation of marrow to produce more erythrocytes
  • D. increasing the break down of the protein portion of the erythrocytes
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Correct Answer: Option C
Explanation

Mammals acclimatize to reduced oxygen at high altitudes through physiological and genetic adaptations, including increased red blood cell production, enhanced lung capacity, and changes in haemoglobin structure and function, all aimed at improving oxygen delivery to tissues. 

In order to compensate for lower oxygen levels, the body increases the production of red blood cells (erythrocytes), which carry oxygen in the blood. This allows for a greater capacity to transport oxygen to the tissues. 


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