Blood cells `:-`

The correct arrangement of blood cell is

The correct arrangement of blood cell is

The shape of the red blood cell is

Which of the following three statements is correct about RBC in mammals? I.Red blood cells circulating in the blood have nucleus. II. Red blood cells have similar function to white blood cells. III. Red blood cells are produced by the bone marrow.

The concave disc-shaped blood cell is _______

The blood cell that is a precursor to microglial cell is –

The blood cell that prevents allergy is