One cubic millimeter of blood contains about ………..WBCs. NTS PST (B) -------2021
a) 5000 to 6000
b) 6000 to 7000
c) 7000 to 8000
d) 8000 to 9000
The average life WBCs is ………days.
a) 1 to 2
b) 2 to 3
c) 3 to 4
d) 6 to 8
Protect the body against attacking microorganisms and diseases.
a) Plasma
b) Red blood cells
c) White blood cells
d) all of these
One cubic milliliter of blood platelets contain about ………..platelets.
a) 20,000 to 250,000
b) 250,000 to 500,000
c) 300,000 to 400,000
d) 450,000 to 650,000
Which of the following plying an important role in clotting of blood during bleeding?
a) Plasma
b) Red Blood cells
c) Blood platelets
d) all of these
Which of the following is/are the diseases of blood?
a) Leukemia
b) Anemia
c) Hemophilia
d) all of these
