Gills do not function well in air because
A) they have a large surface area.
B) they are heavily chitinised.
C) they are thin-walled and heavy.
D) they rely on muscular action.
E) surface tension would increase and decrease gas exchange.

Question

Quizplus · Accepted Answer

Gills are thin-walled and collapse in air, reducing their surface area and making them ineffective for gas exchange outside of water.

Gills Do Not Function Well in Air Because