Spines of the sea urchin can cause injuries of the skin.
Sonic the Hedgehog, sea urchin
I think it is the sea urchin although i might be wrong. - you are correct, a sea urchin is in the Echinodermata phylum as the sea star.
they both have spines but the sea urchin is round while the sand dollar is flat
sea anemones have stinging tentacles, and sea urchins have spines.
Yes, the uric acid decomposes the calcium structure the spines.
So that the sea urchin can protect itself from is enemies, it also has venomous spines. They also use their spines to kill other sea ceatures, so they can eat them.
It's a sea urchin.
Sea urchins are not fish.You see sea urchins are echinoids because of there spines and they have some parasites.
Here are some sentences.Sea urchins have spines.Have you ever seen a sea urchin?
The sea urchin is a member of the phylum Echinodermataand is covered with spines that may or may not be poisonous.
They protect the sea urchin from predators, help in movement and burrowing, and they help them with camouflage.
A sea urchin is covered with very long, quite sharp spines. I know a scuba diver who banged one with his knee and had to go in for surgery.
Well I wouldn't test it... it probably would hurt though
SHE Has NOW TO A NEW POINT [ROSE, RISEN, RAISED ]
Sea urchins do NOT shoot there spines. They can simply let them pop out (sort of like a porcupine). Most people make this mistake... neither a porcupine or sea urchin SHOOT there spines. They do harden and stick out farther but they DO NOT SHOOT THEM!
There are over 700 species of Sea urchins. Some examples would be the pincushion sea urchin, the popular and common longspine urchin, the Blue Tuxedo urchin, the shortspine urchin and the pencil urchin. They usually differ in color, location most common and overall look or how long their spines are.
Yes; all over its body. But its muscles can also move the spines!
There are many species of sea urchin but all sea urchins belong to the class Echinoidea.
A living sea urchin has spines and a dead one just has little bumps.
triggerfish have been known to eat sea urchin usin a special trick to open them an not get poisoned by their spines
yes I took a marine biology class and when they lose a spine it will grow back