Donors and recipients in a blood transfusion process can be:

Given below are two statements:
Statement $I$:
The coagulum is formed of a network of threads called thrombins.
Statement $II$:
Spleen is the graveyard of erythrocytes.
In the light of the above statements,choose the most appropriate answer from the options given below:

Compared to $WBC$,$RBC$ contains......

Reticulocytes may also be called

All plasma proteins are synthesized in the liver. Where are $\gamma$-globulins synthesized?

Blood clotting can be prevented in a test tube by adding a little