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Rashid [163]
1 year ago
9

Jane has been performing aerobic exercise for the past two months in preparation for a 10kK race. What physiological changes are

most likely occurring in her body?
1.a decrease in oxygen uptake decrease in oxygen uptake
2.an increase in red blood cells an increase in red blood cells
3.an increase in resting heart rate increase in resting heart rate (Not the answer)
4. a decrease in cardiac output
Health
2 answers:
eduard1 year ago
8 0

Answer:

The physiological change that is most likely to occur in Jane's body due to aerobic exercise is an increase in red blood cells.

Explanation:

One of the most notorious changes in blood circulation in people in aerobic exercise is the increase in red blood cell mass.

Red blood cells are responsible for transporting oxygen (O₂) to tissues. The <u>increased demand for oxygen by the muscles</u>, due to frequent physical exercise, causes the amount of red blood cells and hemoglobin —the molecule that carries O₂— to increase.

The other options are not correct because:

  • <em>1. Oxygen uptake increases, due to the existence of a greater number of red blood cells and greater demand for this gas. </em>
  • <em>3. Heart rate at rest decreases, as part of physical conditioning. </em>
  • <em>4. Cardiac output increases.</em>
fredd [130]1 year ago
4 0

Answer:

an increase in red blood cells an increase in red blood cells

Explanation:

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