Which one of the following annelid structures or events is not correctly paired with its role in locomotion?
A)circular muscles contract-segment becomes thin and long
B)longitudinal muscles contract-segment becomes thick and short
C)fluid in coelom-provides a hydrostatic skeleton
D)septum-allows each segment to move independently
E)chaetae-provides gas exchange surface for body muscles

Question

Quizplus · Accepted Answer

Chaetae are not involved in locomotion, but rather serve as bristles that help an annelid grip onto surfaces or burrow through substrate.

Which One of the Following Annelid Structures or Events Is