25 POINTS!!!!
What are capillaries composed of?
AEndothelial cells of the tunica externa
BEndothelial cells of the tunica intima
CSmooth muscle cells of the tunica externa
DSmooth muscle cells of the tunica intima
What are capillaries composed of?
AEndothelial cells of the tunica externa
BEndothelial cells of the tunica intima
CSmooth muscle cells of the tunica externa
DSmooth muscle cells of the tunica intima