Respuesta :
Answer:
valve
Explanation:
valve is present in veins and other structures so as to prevent blood to flow backward
Answer:
The answer is valve.
Explanation:
Valve prevents the backflow of blood.
Answer:
valve
Explanation:
valve is present in veins and other structures so as to prevent blood to flow backward
Answer:
The answer is valve.
Explanation:
Valve prevents the backflow of blood.