Which of the following adaptations enables high-altitude natives to maintain adequate oxygen delivery to their tissues?

A Increased red blood cell production ✓
B Decreased hemoglobin affinity for oxygen
C Increased myoglobin levels in muscles
D Increased mitochondrial density in cells

Explanation

At high altitudes, the lower oxygen partial pressure can lead to inadequate oxygen delivery. One adaptation to this is an increase in red blood cell production, which helps to maintain adequate oxygen delivery by increasing the total amount of hemoglobin available for oxygen transport.

Source

Berne and Levy Physiology
Hematology Hematology: Hemoglobin and Oxygen Transport Hematology: Hemoglobin and Oxygen Transport Hard MEDICAL Confidence: high