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Home Q & A Board Biology-Related Homework Help Medicine Dentistry
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lukax22 lukax22
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6 years ago
The use of oxygen and the production of carbon dioxide and their exchange between the cells and blood is:
 
  A. internal respiration.
   B. external respiration.
   C. bradypnea.
   D. orthopnea.
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takirahh_takirahh_
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6 years ago
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lukax22 Author
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6 years ago
Smart ... Thanks!
dedricgard
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Yesterday
Helped a lot
karamsidhu1
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2 hours ago
You make an excellent tutor!
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