The graveyard of $RBC$ is:

The buffer salts present in the blood are

Plasma is a straw-coloured,viscous fluid constituting nearly $A$ $\%$ of the blood,$B$ $\%$ of the plasma is water,and proteins constitute $C$ $\%$ of it. Choose the correct option for the blanks $A, B$,and $C$.

In a normal human,to help the transport of $O_2$ and $CO_2$ properly,the blood is:

State the percentage of water and proteins in blood plasma.
Water $\quad$ Proteins

Biological marriage of one of the following should be avoided: