Sounds like a snail, probably.
It's a sea urchin.
shell
An insect is a small animal with a hard shell that has six legs. Sometimes these bugs have wings and most have 3 sections to its body.
When a hermit crab outgrows its shell, it will move into a larger shell.
bear
An exoskeleton? I think!
what does the Golgi body do in the animal cell
No animal can live without breathing, without breathing means dead.
the ligers coat is like a turtels shell.
Okay nitrogen is enter though the system of an animal cell
butterfly
My African Land Snail's whole body partially came out of its shell the night before it gave birth and we assumed it was dead, but underneath the shell we could see small bumps under its skin. The next morning it seemed to have managed to pull itself back inside its shell and was surrounded by lots of snail eggs.