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Standard XII
Biology
Question

If a person stays on Mount Everest for some days
  1. His body will step up production of RBC
  2. His body will step down production of RBC
  3. Number of RBC will not change
  4. His RBC will turn into very large cells

A
His body will step up production of RBC
B
Number of RBC will not change
C
His body will step down production of RBC
D
His RBC will turn into very large cells
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Solution
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The correct option is A.
Even at moderate elevations, many people experience headaches and shortness of breath due to lower oxygen concentrations at that level. However, if they stay at that elevation, the body will compensate by producing more red blood cells and all functions will return to normal.

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