Yes but not all. Because a mantle is a hard substance that cells secret. Example: clams Hydra ,a type of cnidarian, does not have this. :)
small cnidarians and big cnidarians
The cnidarians are in the Kindom family
cnidarians have no nervous system
Yes, cnidarians are invertebrates.
Nope - Cnidarians are marine creatures !
cnidaria(similar to cnidarians)
Cnidarians reproduce asexually and sexually
There is none. Corals are cnidarians.
They provide a habitat for Cnidarians
Cnidarians live in water.
Cnidarians and Sponges are invertebrates
Jellyfish, corals, and box jellies are cnidarians.