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A year ago
The exchange of gases between the blood and body cells is called
 A) inhalation.
  B) inspiration.
  C) exhalation.
  D) internal respiration.



Which disease is the only vaccine-preventable disease that is infectious but not contagious?
 A) polio
  B) diphtheria
  C) tetanus
  D) influenza
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wrote...
A year ago
D

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C
wrote...
A year ago
Powerful stuff here, thanks
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