Yes. Leeches are invertebrates and they are related to worms.
See Related Links for a Google image gallery of Invertebrates
They are all invertebrates.
Try doing a Google Image Search for the word invertebrates. See Related Links for an example.
yes they do they are both invertebrates
No. They are invertebrates related to starfish and sea urchins.
Since they are vertebrates, they are most closely related to fish.
Yes, ants are invertebrates like all insects are. They do not have a backbone (spine) which is what would classify them as vertebrates. See related questions and links for additional details.
No, or at least extremely distant. Dinosaurs are vertebrates, jellyfish are invertebrates.
See the Related Link for a list of invertebrates (animals with no backbone).
Invertebrates do not have spines (backbones). See related questions and links for more information.
Invertebrates do not have spines (backbones). See related questions and links for more information.