I need help whit this quest..

7. what is the main fob of the red corpuscles (red blood cell) in the blood?

a.to clot blood

b.to fight disease

c.to transport oxygen to the body's cell and carry away carbon dioxide away from the cells

d. to trensport carbon dioxide to the body's cell and carry away oxygen from the cells

8.wich of the following can best be compared to soldiers

a.lungs

b.capillaries

c.red blood cells

d. white blood cells

9.wich element in the blood is round and clolorless?

a.plasma

b.platelets

c.red blood cells

d.white blood cells

10.what would happen to people who have an open wound and the blood did not clot naturally?

a. they would bleed to death

b.nothing.clotting is not import

c.they would have to take special clotting drugs

d.they would have to take regular doses of plasma

11.what happens when a clot ocurred in an undamaged blood vessel?

a.you would bleed to death

b.a scab will form on the skin surface

c.platelets stick to the edges of the cut and to one another

7.c, 8.d,9.d,10.c,11.c

7-c 8-d 9-b 10-c 11-c