The worm is an invertebrate because it doesn't have a backbone.
Worms have no internal skeletons or backbones so they are invertebrates.
No, like all worms it is an invertebrate.
Worms do not have backbones so they are all invertebrates no matter what sort of worm they are.
Worms do not have bones
All worms are invertabrates.
Worms are invertebrates as they do not have a spine.
Most invertebrate animals are protostomes.
Roundworms and flatworms do not have backbones. All worms are invertebrates.
They have backbones unlike snails or worms which are in invertebrate.
Worms are invertebrates, they have no spines.They are invertebrate, they have no backbone but their many fluids in their body enable them to move around. Snakes are vertebrate however, they look the same but have a very long backbone.It is an invertebrate because it doesn't have a backbone.
platehelminthes (flat worms)
Yes, it is like all other worms.