The maximum amount of oxygen which normal human blood absorbs and carries at sea level is ________ per 100 ml of blood.
A. 10 ml
B. 20 ml
C. 30 ml
D. 40 ml
The maximum amount of oxygen which normal human blood absorbs and carries at sea level is ________ per 100 ml of blood.
A. 10 ml
B. 20 ml
C. 30 ml
D. 40 ml