Biology, 20.05.2021 20:10 bartekpiglo
3.At high altitudes, air is less dense than at sea level because of decreased air pressure. This means that
a person who ascends to high altitudes takes in fewer oxygen molecules per breath.
a. Describe and explain an immediate response that occurs in the respiratory system when a person
first teaches high altitudes.
b. Describe and explain an immediate response that occurs in the circulatory system when a person
first reaches high altitudes.
If a person lives at high altitudes for an extended period of time, other body responses occur. One response
is an increase in the number of red blood cells.
C. Explain how this response is helpful to the body.
At high altitudes, air temperature is also generally colder than at sea level.
d. Describe and explain one internal body response that occurs when a person has been outside long
enough for his core temperature to drop.
Answers: 3
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3.At high altitudes, air is less dense than at sea level because of decreased air pressure. This mea...
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