Biology, asked by AminurJaman, 10 months ago

A large proportion of oxygen remains unused in
the human blood even after its uptake by the
body tissues. This 0
(1) acts as a reserve during muscular exercise.
(2) raises the pCO, of blood to 75 mm Hg.
(3) is enough to keep oxyhaemoglobin saturation
at 96%
(4) helps in releasing more 0, to the epithelial
tissues.​

Answers

Answered by nsrivatsa0683
2

Answer:

ans is 1

Explanation:

Answered by farrukhshahid963
1

Answer:

1 act as a reverse during muscular exercise

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