blubberfish8209 blubberfish8209

21-11-2019
Biology

contestada

Valves in the veins support the theory that: A: blood moves in two directions through the vein, B: movement of blood is back and forth through the veins, C: blood circulates through the body, D: blood ebbs and flows in one space

Respuesta :

heathmattocks heathmattocks

21-11-2019

Answer:

c

Explanation:

because the blood circulates

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