At which stage of maturation does an erythrocyte lose its nucleus and organelles?

Type 1 Diabetes:

The most common type of leukocytes in circulating blood, with clear granules; function as phagocytes to consume foreign objects/invaders like bacteria.

Type AB+ :

The production of blood cells and platelets is called:

Some athletes try blood doping (artificially increasing RBC count) to boost which function of blood?

Where does filtered lymph get emptied back into circulation?

Plasma is made of mostly:

IgG:

Which of the following normally makes up the largest portion of whole blood?