The minimum age to obtain one's driverâs license should not be raised to 18 because 16-year-olds have a much more focused mind. If you change the minimum driving age to 18, it will be very little different from 16-year-olds because either way they wouldn't have very much driving experience.
Snails make their own shells.They make it with a muscle called the mantle.The mantle then releases liquid.When the liquid hardens it forms the shell.Later in the snails life t â¦ he mantle releases more liquid and the shell becomes bigger.
Slugs and snails are molluscs, like oysters and clams. They are both similar in structure, except that the snail is protected by a hard shell that makes it less vulnerable than slugs to dry conditions and the sun.Slugs and snails have a soft, unsegmented body that is 2 to 4 cm (.79 to 1.5 inches) long.The head has one or two pairs of tentacles. The front tentacles are sensitive to odours and sometimes taste, while each of the larger back tentacles have an eye at the end.lugs and snails are known as gastropods, which means stomach foot.. The foot located on the stomach is how they move around. Slugs and snails are also hermaphrodites, with both male and female organs.