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The circulatory, or cardiovascular system, is composed of a. the lungs, heart and brain. b. the lungs, blood vessels and heart. c. the heart, blood and blood vessels. d. the heart, arteries and veins.
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The circulatory, or cardiovascular system, is composed of

a. the lungs, heart and brain.
b. the lungs, blood vessels and heart.
c. the heart, blood and blood vessels.
d. the heart, arteries and veins.

User Kishore Sampath
by
8.3k points

1 Answer

4 votes

c. the heart, blood and blood vessels.

User Xeed
by
8.5k points
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