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2 years ago

14

The valves in the heart open and close to move blood in between heart chambers. O a) three directions O b) two directions O c) f

our directions d) one direction

2 answers:

Alexxx [7]2 years ago

8 0

Answer:

B

Explanation:

The two chambers, the ventricles

Tom [10]2 years ago

5 0

Answer:B The two chambers, the ventricles

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