The figure given below shows a small part of human lung where exchange of gases takes place. In which one of the options given below, the one part A, B, C or D is correctly identified along with its function,
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can u plz post the figure also ....cause this way u r just giving point to others...
hop u dont mind..!!! :)✌✌✌
jiyasingh29:
hii
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Picture? ????????????
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