Question

the percentage of oxygen absorbed from the air in the lungs is always about the some so how can the oxygen supply to the blood be increased during vigours activity?​

Answer 1

Answer:

this is your answer hope it's helpful

Answer 2

Thank you for asking this question.

During vigorous activity

heart rate increases which stimulates the breathing rate. With an increase in the heart rate, blood pumps through muscles at a faster rate.

As oxygen is

supplied via red blood cells so this increased rate of blood flow leaves less time for oxygen uptake and fast blood flow increases the oxygen supply in vigorous activity.

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