Question

which blood component makes up 55% of the bodys blood?
plasma
red blood cells
platelets
white blood cells

Explanation:

Plasma makes up about 55% of the blood's volume. Red - blood cells, platelets, and white - blood cells are the cellular components. Red blood cells are the most abundant among the cellular elements but do not constitute 55% of blood volume. Platelets and white blood cells are present in much smaller amounts compared to plasma and red blood cells.

Answer:

plasma