How do you distinguish between dorsal and ventral surface of the body of earthworm.

Question

Philoid · Accepted Answer

The dorsal surface of the body of earthworm has a dark dorsal median line than the ventral surface of the body of earthworm.

There is the presence of a single median per segment by which coelomic fluid comes out in the dorsal surface of the body of earthworms whereas ventral surface has various openings like genital openings.