sweaversw9602
29.10.2019 •
Health
35
this image shows the inside of a human lung. there is a space between the alveolar sac and the capillary where oxygen and carbon dioxide diffuse between the lung and blood. which structures form this blood-air barrier?
a. structures a and b
b. structures b and c
c. structures c and d
d. structures d and b
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Ответ:
Ответ:
Pathogens
Explanation: