Want this question answered?
Worms and snails do not have an inside skeleton- but pigs do.
syy
Well Pigs Do Have Bones And Worms Have No Bones and Snail Has A Shell On The Out Side So Snail And Worm
A snail seals itself shut. This is because it is sleeping. Give it time and it will move itself out.
Snails do not have an internal skeleton.A snail has an outer shell.There are thousands of species of snail, most snails can retract completely into it's own shell.
The kind of skeleton a crab has is an exoskeleton. This means that instead of bones inside its body it has a hard outer shell that supports and protects it.
That is probably what is called the operculum. That is a door that the snail closes behind itself when it pulls back into the shell.
The external parts of a snail are shell and muscular foot. The shell is the outer skeleton of a snail. Snail moves from one place to another with the help of muscular foot.
many fishes do have
A snail's skin is very sensitive to salt because their body, like ours, is comprised of mostly water. Snails have a hydrostatic skeleton that makes them even more sensitive to salt. Osmosis causes the water inside the snail to diffuse out of the snail when salt is placed on it. These facts lead me to believe that a snail will not try to cross a barrier of salt.
All snails have only a shell for a skeletal system.
Most crustaceans have exoskeletons The skeleton is on the outside:)