it doesnt
The first segment on an earthworm is called the prostomium. It is a fleshy lobe that covers the mouth and helps the earthworm sense its environment.
Dead earthworm.
Segment 21 .
Segments
Yes, the setae on an earthworm segment are usually arranged in pairs, with each pair located on opposite sides of the segment. These setae help the earthworm grip the soil and aid in movement.
earthworm
not what those guys said
The female genital pores in an earthworm are located on segment 14. These pores are used for receiving sperm during reproduction.
2
they are squished
The segment number of the pharynx on an earthworm is around 4-7. Hope that helps.
Prostomium is the frontmost part of the earthworm. This is not called a true segment as it doesn't contain typical organs of an annelida. Peristomium is from where the true segment of the earthworm body starts.