michellemurphy51 michellemurphy51
  • 07-12-2020
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vessels that allow for the exchange of oxygen and carbon dioxide between blood cells or air sacs in the lungs.
A.arteries
B.capillaries
C.veins
D.bronchi

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gurmukhsingh96 gurmukhsingh96
  • 07-12-2020
B . capillaries.....................
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