Blood flows in the cardiovascular system . . . (choose all correct) Group of answer choices

a. due to lack of resistance in the vessels

b. in order to bring oxygen to the tissues

c. down a pressure gradient

d. created by contraction of the heart

e. through a closed system of vessels

All the options are correct.

Explanation: Blood flows

e. through a closed system of vessels

a. due to lack of resistance in the vessels

b. in order to bring oxygen to the tissues

c. down a pressure gradient

d. created by contraction of the heart

answer:

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