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malfutka [58]
3 years ago
7

30 POINTS!!!!!!

Biology
2 answers:
HACTEHA [7]3 years ago
4 0

Answer:

C

Explanation:

D shows the outer wall of the capillary and C shows the outer wall of the alveolar sac. (The pink cloud looking thing)

ollegr [7]3 years ago
3 0
I think your answer would be D, that is the one that makes most sense to me, anyways. hope this helped.
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