Biology, 11.11.2019 09:31 kimlyn58p0wyn0

30
in the image above of an alveolus, what is the identity of the two visible tissue layers labeled c and d.

a. c = inner wall of alveolar sac; d = outer wall of alveolar sac
b. c = inner wall of alveolar sac; d = outer capillary wall
c. c = outer wall of alveolar sac; d = outer capillary wall
d. c = inner capillary wall; d = outer capillary wall

30 in the image above of an alveolus, what is the identity of the two visible tissue layers l

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