They have no shell but yes they are technically shellfish. If you have a shellfish allergy you can't eat octopus.
An octopus or squid
No. A lobster and crab is a crustacean. An octopus, squid and cuttlefish are mollusks.
* Octopus * Orca * Ostracod (freshwater crustacean) * Otter * Oyster
An octopus is a mollusk. Mollusks have soft bodies. Some other examples of mollusks include snails and bivalves. A crustacean has a hard shell. Crabs and lobsters are crustaceans. Octopus like to eat crustaceans, but they are mollusks.ya
No because a crustacean has a exoskeleton and a mussel has a shell
No. A bird is not a crustacean.
crustacean is not a decomposer
a crab is a crustacean
crustacean
No, a frog is an amphibian, not a crustacean.
animalChitin is a polysaccharide that strengthens the structure of arthropod (insect, crustacean, etc.) exoskeletons, as well as cephalopod (squid and octopus) beaks, and fungal cell walls.