ANIMALS/INVERTEBRATES
type: Concept

ROUNDWORMS
in scheme: sciencekeywords
definition: Roundworms are mostly worm-like and unsegmented, with an external cuticle, a pseudocoelom between body wall and gut, an anus and complex nervous system but not circulatory system. They are mostly free living bottom dwellers in marine and freshwater environments and in the soil.
type: Concept