Which are the three major organs of the circulatory system?
A. leukocytes, plasma, platelets
B. heart, blood, blood vessels
C. pulmonary veins, aorta, veins
D. capillaries, veins, artery
A. leukocytes, plasma, platelets
B. heart, blood, blood vessels
C. pulmonary veins, aorta, veins
D. capillaries, veins, artery
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the answer is B.heart, blood, blood vessels
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Answer:
B
This is the correct answer I think