Which of the following is not an adaptation in high altitude populations such as the Andes in South America or Tibetan Sherpa's of Nepal? Increase in lung size and volume. Increase in the number of red blood cells. Increase in the oxygen saturation of existing red blood cells. increased blood flow to the lungs.
Question
Which of the following is not an adaptation in high altitude populations such as the Andes in South America or Tibetan Sherpa's of Nepal? Increase in lung size and volume. Increase in the number of red blood cells. Increase in the oxygen saturation of existing red blood cells. increased blood flow to the lungs.
Solution
The statement that is not an adaptation in high altitude populations such as the Andes in South America or Tibetan Sherpa's of Nepal is "Increase in the oxygen saturation of existing red blood cells."
Here's why:
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Increase in lung size and volume: This is an adaptation to high altitudes. The body compensates for the lower oxygen levels at high altitudes by increasing lung size and volume, allowing for more oxygen to be inhaled and absorbed with each breath.
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Increase in the number of red blood cells: This is also an adaptation to high altitudes. The body produces more red blood cells to carry the limited oxygen available in the high altitude environment.
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Increase in the oxygen saturation of existing red blood cells: This is not an adaptation to high altitudes. Oxygen saturation refers to the extent to which hemoglobin is saturated with oxygen. At high altitudes, the oxygen saturation of the blood actually decreases due to the lower oxygen pressure, not increases.
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Increased blood flow to the lungs: This is an adaptation to high altitudes. The body increases blood flow to the lungs to maximize the amount of oxygen that can be absorbed from the limited air.
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