Question and answer
Where does gas exchange occur in the respiratory system? A. bronchi B. trachea C. epiglottis D. alveoli
Gas exchange occur in the alveoli.
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Asked 3/31/2011 10:18:18 AM
Updated 12/20/2015 7:04:31 PM
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Gas exchange occur in the alveoli.
Added 12/20/2015 7:04:31 PM
This answer has been confirmed as correct and helpful.
Confirmed by yumdrea [12/20/2015 7:32:28 PM], Rated good by yumdrea
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The body's most important nonspecific defense against pathogens is SKIN.

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1 Answer/Comment
A decomposer is a consumer that breaks down dead organic material.
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