← Biology (0610)
Q1 / 5
Gas exchange surfaces
Foundation
2 marks
List four features of an efficient gas exchange surface.
A
Large surface area, thin walls, moist surface, rich blood supply/ventilation
B
Thick walls, dry surface, small area, no blood supply
C
Rigid walls, large lumen, mucus layer, no blood supply
D
Small surface area, thick walls, dry conditions, slow circulation
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