demibr9 demibr9

30-04-2021
Biology

contestada

8. Valves prevent blood from flowing backwards. Valves are located in the
O
veins
heart
heart and arteries
heart and veins

Respuesta :

nazz1010 nazz1010

30-04-2021

Answer:

Heart and artries

Explanation:

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miglue22 miglue22

30-04-2021

The veins help not let the blood go backwards

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