Question

Which of the following is the adaptation that allows animals to survive in high altitudes, which contain lower levels of oxygen?

a.

migration

b.

higher levels of hemoglobin

c.

insulating feathers

d.

higher body temperatures






Please select the best answer

Answer 1

b. higher levels of hemoglobin

Higher hemoglobin (or higher hemoglobin affinity/greater red blood cell count) increases the blood's oxygen-carrying capacity, helping animals get enough oxygen at low atmospheric partial pressures found at high altitude.