They are important because without them they could not walk to capture prey and they could not do alot of things to keep them alive. ~Mariah~
segmented have lines in them and non dont.
The head of a nematode has a few tiny sense organs, and a mouth opening into a muscular pharynx (throat) where food is pulled in and crushed. This leads into a long simple gut cavity lacking any...
yes.
The soil.