Select your answer:
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Pulmonology › ViewMicroscopic sacs where gas exchange takes place; are called:
A. alveoli
B. bronchi
C. villi
Eye Histology › View
Which layer, composition, and organ produced by is incorrect?
A. Superficial layer, lipid, and Meibomian glands
B. Central layer, aqueous, and lacrimal glands
C. Central layer, cholesterol, and lacrimal glands
D. Basal layer, mucoid, and goblet cells