yes they do,if youre talking about saltwater when you dont see their mouth they are sleeping.
7 hours
Sea snails Freshwater snails
Snails can sleep for 3-4 years without waking up. Snails can also hibernate in the winter.
The nerites are snails of the family Neritidae, which contains both freshwater and saltwater species. In particular, the snails in the tribe (a kind of subgroup) Theodoxini, such as Theoxodusand Clithon, are freshwater. The snails of all other nerites tribes are saltwater.
Apple snails live in freshwater.
all snails sleep in gardens because it is comfortable.
Apple snails are freshwater aquatic snails. Garden snails are land snails.Apple snails have lungs and gillsGarden snails have lungs onlyApple snails skin is thin and translucent (with slime)Garden snails skin is thick and leathery (with slime)All apple snails have two sets of antennaeGarden snails have species with one and two sets.
Snails don't sleep everyday but they can sleep up to 3 years in a row.
There are many chemicals that will kill freshwater snails but they will also kill fish and some will kill plants too. The best way I have found to remove snails is to have a few Clown loaches (Botia macracantha) or a couple of freshwater Puffer fish to kill and eat them.
Freshwater crayfish and snails.
no!
Yes; several different kinds of freshwater snails (a kind of mollusc) are used in Asian cooking. Some examples are pictured in the Wikipedia article on freshwater snails (see related link below).
Gastropods are commonly referred to as snails or slugs. Gastropoda is the class name within the Mollusca phylum, which is within the Animalia kingdom. Gastropods may include sea snails, sea slugs, freshwater snails, freshwater limpets, land snails, and land slugs.