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horrorfan [7]
3 years ago
14

The lining of air sacs in the lungs

Biology
2 answers:
user100 [1]3 years ago
5 0
Within the lungs,the bronchi into smaller bronchi and even smaller tubes called bronchioles.
a_sh-v [17]3 years ago
3 0
<span>The answer is: simple squamous epithelium.</span>
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