Iwill give brainliest to the first correct !
why does the circulatory system contain va...
SAT, 20.10.2019 10:30 ibarral37102
Iwill give brainliest to the first correct !
why does the circulatory system contain valves?
a. to stop blood flow.
b. to reverse blood flow.
c. to keep blood flowing in one direction.
d. to separate blood vessels from each other.
Answers: 1
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