Sea urchin is a member of Echinoderm family
Jellyfish, octopus, sea urchin
That depends, obviously, on the species of Sea Urchin. All belong to the Phylum Echinodermata (along with sea stars and sea cucumbers) and to the Class Echinoidea. They are then divided into different orders, genera and species. That depends, obviously, on the species of Sea Urchin. All belong to the Phylum Echinodermata (along with sea stars and sea cucumbers) and to the Class Echinoidea. They are then divided into different orders, genera and species.
A salt-water body. Like a SEA or ocean. It says in the name SEA urchin.
No, they are invertebrates (Echinoderms). Echinoderms have no backbones, like the Brittle Star and Sea Urchin.
they have no backbone this is true to all invertebrates
Sea anemones, coral and jelly fish belong to the group of Cnidarians.
Sea anemones:Kingdom: AnimaliaPhylum: CnidariaClass: AnthozoaOrder: ActiniariaFamily: CnidarianGenus: Actinia fragaceaSpecies: Sea anemone
no!, they are completely different creatures. this is a seahorse http://images.google.com/images?hl=en&rls=com.microsoft%3A*%3AIE-SearchBox&um=1&sa=1&q=sea+horse&btnG=Search+Images this is a sea urchin http://images.google.com/images?hl=en&rls=com.microsoft%3A*%3AIE-SearchBox&um=1&sa=1&q=sea+urchin very very different creatures.
the scientific name for a sea urchin is Family: Strongylocentrotidae Genus: Strongylocentrotus Species: Strongylocentrotus Purpuratus
The classification of a Sea Urchin is Echinoidea
The domain for a sea urchin is Eukarya. This domain includes all organisms that have complex cells with a nucleus and membrane-bound organelles. Sea urchins belong to the phylum Echinodermata and are characterized by their spiny exoskeletons and radial symmetry.
No, while crabs are indeed invertebrates thy have a carapace not a skin.