Blood that has been depleted of oxygen and loaded with carbon dioxide empties into the ___, which carry I back to the heart.

Blood that has been depleted of oxygen and loaded with carbon dioxide empties into the ___, which carry I back to the heart.

Blood that has been depleted of oxygen and loaded with carbon dioxide empties into the ___, which carry I back to the heart.



A. arteries
B. veins
C. capillaries
D. tissues






Answer: B


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