They look like a normal eye except the white in a sea urchin is blue and have bright yellow eye coloring.
Sea Urchin
of course it is! look up sea urchin in the da dictionary!!!
A sea urchin is a half-sphere. The top of the urchin is rounded like a globe but the bottom is flattish to fit on the bottom of the sea so it can walk around.
The echidna of Australia and New Guinea, the hedgehog of Britain, the porcupine.
A (street) urchin is a child who lives on the street, surviving by engaging in petty crimes. A (sea) urchin is a spiny creature (exoskeleton), with a soft interior. I welcome improvements to this answer.
A sea urchin. Sea cucumbers are smooth and look just like cucumbers and have suckers on their mouth parts just like those in leaches.
Sea Urchin
The classification of a Sea Urchin is Echinoidea
A salt-water body. Like a SEA or ocean. It says in the name SEA urchin.
No. The sea cucumber is, in fact, an echinoderm like the sea urchin.
A Sea urchin
sea urchin