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11. Why are arteries tough?
A.To carry fresh blood to all body parts
B.To enable blood to exchange nutrients it
C. To withstand the pressure of blood due to the
pumping of the heart
D. To carry waste materials to the lungs​

Sagot :

C explanation the arteries need to withdtand the pressure of blood as it is pumped away from the heart and to the rest of the body. Blood may enter the body cavity if the arteries are weak.