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7 votes
Please help!! thank you

Please help!! thank you-example-1
User Hyades
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3.3k points

2 Answers

7 votes
Values is the correct answer / heart values
User Zindarod
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3.1k points
7 votes

Answer:

The valves

Step-by-step explanation:

The valves open and close allowing blood to flow and prevent the direction of the blood to go backwards. Kind of like a one-way road.

User DPG
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3.6k points