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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

Adisease in which scar tissue replaces healthy liver tissue

The following are all tips for mindful eating except:

Ryan is a nine-year-old boy whose father wants him to be a soccer player. ryan does not have an aptitude for soccer, and keeps failing miserably at it. his father criticizes him in an attempt to motivate ryan to play better. as per erickson’s psychosocial theory, what is a likely consequence of this criticism? a. ryan may start developing an interest in soccer. b. ryan may develop a respect for his father. c. ryan may develop an inferiority complex. d. ryan may excel at soccer. e. ryan may gain self-esteem.