Mr. Smith moved from a low altitude to a high altitude and experienced an increase in RBCs. Which of the following caused this increase?

A. The increased metabolic rate seen at higher altitudes
B. Increased exercise
C. The lower temperature present at higher altitudes
D. The increased CO2 retention that occurs at high altitudes
E. The lower O2 concentration seen at higher altitudes


Answer: E

Anatomy & Physiology

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