What function do capillaries serve in the cardiovascular system?
a. carry blood to the brain
b. return blood to the lungs
c. control body temperature
d. replace old blood cells

b. return blood to the lungs Capillaries are the area where the nutrients and excess wastes produced by the cell processes are exchanged and tranfer back to the body system to be excreted and others to be transferred to other body tissues.

It will increase hope this heloed

To wear the full equipment.