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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Why does meiosis produce cells with half the chromosomes? o a. most of the chromosomes are not necessary to keep an organism alive. b. a gamete needs only half the number of chromosomes because two gametes join together. o c. it makes the gametes easier to move around in the organism. o d. it is faster to produce gametes with fewer chromosomes.
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Which phrase is the best summary of the model shown? a. the transfer of the sun's energy through trophic levels b. a series of aerobic and anaerobic reactions c. a transformation of light energy into chemical energy d. the breakdown of food molecules
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Which is not a type of symmetry? a. asymmetryb. radial symmetryc. bilateral symmetryd. lateral symmetry
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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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