[Campbell Biology P.932] When an animal acclimatizes to high altitude, which initial physiol... | Practice Question

When an animal acclimatizes to high altitude, which initial physiological change helps compensate for the lower oxygen concentration?

  • A: Increased CO2 retention to raise blood pH.
  • B: More rapid and deep breathing.
  • C: Excretion of more acidic urine by kidneys.
  • D: Significant drop in core body temperature.

Explanation

The text states that 'the lower oxygen concentration in the high mountain air stimulates the animal to breathe more rapidly and deeply' as an initial adjustment to compensate for the lower oxygen.