no they do not have skin
spikes and they do not have skin they have a Shell
Echinoderma are a phylum of "spiky skin" sea life, such as starfish, sea urchins, and sand dollars.
No. Sea urchins live in the sea.
Sea urchins!
More sea urchins.
The classification of a Sea Urchin is Echinoidea
sea urchins eat kelp.
there are excatly 3million purple sea urchins
Sea urchins belong to the phylum Echinodermata.
Echinoderm means "hedgehog skin" in Greek and refers to spiny sea animals such as sea cucumbers, sea urchins and crinoids.
No. Sea urchins are primary consumers and only eat sea weed, algae and kelp.