Question

iii. Explain how red blood cells are adable
iv. There is less oxygen in the air at high altitudes than at sea level. Scientists have
shown that people living at sea level have about 5 million red blood cells per mmº of
blood whereas people living at high altitude have 7 million red blood cells per mm3
of blood.
Suggest a reason for this difference.​

Answer 1

Answer:

There are two major kinds of environmental stresses at high altitude for ... The percentage of oxygen in the air at two miles (3.2 km.) ... has more red blood cells and greater lung expansion capability than ...