breathing and exchange of gases: a large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues, this O2

Question

a large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues, this O2

sakhi rathore · Accepted Answer

acts as a reserve during muscular exercise

A large proportion of oxygen is left unused in the human blood even after its uptake by the body tissues, this O2