nba2klegend nba2klegend
  • 25-02-2021
  • Health
contestada

Please help!! thank you

Please help thank you class=

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lydia112233
lydia112233 lydia112233
  • 25-02-2021

Answer:

The valves

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.

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notsayingmynamelol notsayingmynamelol
  • 25-02-2021
Values is the correct answer / heart values
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