Blood
                Red Blood Cells:45%
Plasma:4%
White Blood Cells and Platelets:1%
A. Clump together
B. Help circulate blood.
C. Write literature.
Left Ventricle:Contracts and forces oxygen-rich blood.
B:11%
AB:4%
O:45%
WBC:Fight infection and attack foreign substances.
Platelets:For clotting blood.