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What is the difference between internal and external respiration??
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What is the difference between internal and external respiration??

User Don Alvarez
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Answer:

External respiration occurs in the lungs where oxygen diffuses into the blood and carbon dioxide diffuses into the alveolar air. Internal respiration occurs in the metabolizing tissues, where oxygen diffuses out of the blood and carbon dioxide diffuses out of the cells.

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User Mfa
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