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The soft, spongy tissue of the lungs is composed of millions of microscopic sac-like structures called: A. bronchioles B. alveoli C. mitochondria D. cilia
The soft, spongy tissue of the lungs is composed of millions of microscopic sac-like structures called: alveoli.
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Asked 5/1/2013 2:23:17 PM
Updated 7/26/2015 1:30:10 PM
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The soft, spongy tissue of the lungs is composed of millions of microscopic sac-like structures called: alveoli.

Added 7/26/2015 1:30:10 PM
This answer has been confirmed as correct and helpful.
Confirmed by yumdrea [8/1/2016 12:36:59 PM]
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