Hypoxic ventilatory response (HVR) and increased hemoglobin concentrations are two ways human populations cope with
A) heat
B) cold
C) water
D) high altitude

Question

Quizplus · Accepted Answer

Hypoxic ventilatory response (HVR) is the increase in ventilation in response to low levels of oxygen in the air. At high altitudes, where the air pressure and oxygen concentration are lower, the body increases HVR to take in more oxygen. Increased hemoglobin concentrations help transport oxygen more efficiently from the lungs to the tissues. This is particularly beneficial at high altitudes where there is less oxygen in the air. Therefore, these responses are the best ways human populations cope with high altitude.

Hypoxic Ventilatory Response (HVR) and Increased Hemoglobin Concentrations Are Two