No, it is in the phylum Echinodermata
Sea stars are in the phylum Echinodermata and the subphylum Asterozoa.
Phylum Cnidaria
No- they do not belong to the phylum Cnidarian. They belong to Molluska.
Starfish belong to the Phylum Echinodermata.They are echinoderms.
Cnidaria
No, an octopus would be an example of a mollusk (not a cnidarian).
No. Rather, it belongs under Phylum Mollusca, and class Cephalopoda. A Cnidarian has nematodes and cnidocytes, which a cuttlefish does not have.
Hydroids belong to the phylum Cnidaria.
kingdom Animalia, phylum Echinodermata.
Yes, species in the Class Phylum Cnidaria do have a Ganglion.
echinodermata A+
Starfish are members of the phylum Echinodermata. They can be distinguished from other species in this phylum by having a flat, star-shaped body with multiple arms. The number of arms varies.