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sminatalicaLundin
sminatalicaLundin sminatalicaLundin
  • 18-07-2016
  • Health
Answered

The circulatory system includes the heart, select one:

Aair passages, and blood vessels.
Bblood, and blood vessels.
Clungs, and air passages.
Dlungs, and blood vessels.

Verified Answer :

amys31gifts amys31gifts
  • 18-07-2016
Bblood and blood vessels. 

All of the other answers include lungs or air passages, which are part of the respiratory system.
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