Animalia.
Sea urchin belongs to the Animalia kingdom, Echinodermata phylum, Echinoidea class, Echinoida order, Strongylocentrotidae family, Strongylocentrotus genus, and purpuratus species.
The classification of a Sea Urchin is Echinoidea
sea urchin
No, an urchin belongs to the Animal Kingdom.
A sea urchin does move, but not very frequently.
because the crab needs the sea urchin for protection and the sea urchin needs the crab for food
Ummm...it's the thing from which a sea urchin hatches?
I think a sea anenome and a sea urchin can live together because i have a little aquarium and there is a sea urchin and and a sea anenome (if that's how you spell it) living in there and they were perfectly fine. BUT if you have a sea urchin do not have any crabs in there, because my sea urchin killed one, and almost killed another one by taking its claw off. :(
Sea urchins belong to the kingdom Animalia, which is one of the five kingdoms of living organisms. Within the kingdom Animalia, sea urchins are classified under the phylum Echinodermata. Echinoderms are characterized by their spiny skin and radial symmetry, which sea urchins exhibit prominently.
Spines of the sea urchin can cause injuries of the skin.
It urges the sea to adapt to IT! The litle urchin urger.
a blue tuxedo sea urchin