(Q).
Q: Blood is made up of red blood cells, white blood cells, platelets, and what else?    Choices:  - pathogens  - hemoglobin  - potassium  - plasma  A:
(A).
plasma


(Q).
Q: The force that blood exerts upon the walls of the blood vessels or upon the chambers of the heart is known as blood what?    Choices:  - squeeze  - push  - vaccuum  - pressure  A:
(A).
pressure


(Q).
Q: The infection-fighting complement system consists of roughly 30 proteins in?    Choices:  - stomach acid  - stool  - fats  - blood plasma  A:
(A).

blood plasma