snail lug
a shell
Shell
The covering for the opening of a snail's shell is called the "operculum." This hard structure acts as a protective door that can close the opening of the shell when the snail retracts its body, helping to prevent desiccation and protect against predators. Not all snails have an operculum; it is more commonly found in certain types of aquatic and terrestrial snails.
if you mean the shell.... it is made of calcium, it grows with the snail and gains whorls (the spirals) ..............similar to a tree, the more spirals the older the snail.
they have same outer covering
Turtle,snail,crab and shellfish.
a snail has a bilteral body system.
It depends on the classification of vertebrate.Mammals have a body covering of fur, skin or hair.Birds have a body covering of feathers.Reptiles have a body covering of scaly skin.Fish have a body covering of scales.Amphibians have a body covering of moist skin.
The body covering is molt I don't know what it is
Wallabies have a body covering of fur.
The body covering is fur.