No
Animals that don't have a backbone (spine) - arthropod, mollusc, annelid, coelenterate are examples.
No they are vertebrates because they have backbones. Invertebrates don't have a backbone. Invertebrates are bugs incests, arthropods. mollusks, annelid coelenterates etc.
annelid- earthworm
No. An annelid is a worm - completely soft all the way through.
leech is an Annelid worm used for treatment of illness.
The centipede is not an annelid. This insect is classified as a arthropod and belongs to the Chilopoda family.
leech
No
Because the worm has many rings around its bodies which makes it a an Annelid. Annelid="Ringed" and refers to a series of rings or segments that make up the bodies of the members of this phylum.
yes
leech
Yes.