In pulmonate snails, gas exchange occurs
A) through a single gill on the left side of the mantle cavity.
B) in a lung cavity with a single restricted opening.
C) at the tips of the finest branches of tracheoles.
D) through the mouth as the gills have been lost.
E) through a pair of sheet-like gills on either side of the foot.

Question

Quizplus · Accepted Answer

Pulmonate snails have a lung cavity for gas exchange, which opens to the outside through a small opening called the pneumostome.

In Pulmonate Snails, Gas Exchange Occurs