Question

Locomotion is facilitated in an earthworm by _________.​

Answer 1

Explanation:

Muscular movement is aided by the compartmentalization of the segment—coelomic fluid, confined by the segment walls, provides a substance against which the muscles can work.

Answer 2

Explanation:

Muscular movement is aided by the compartmentalization of the segment—coelomic fluid, confined by the segment walls, provides a substance against which the muscles can work.