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.
Credit: SuperFantastic CC-BY-2.0. Snails are mollusks with a shell, which usually has a spiral or coiled shape. A snail moves slowly by rhythmically contracting its muscular base, or foot, and secretes a slimy path. Snails' eyes are on stalks or tentacles. Different species of snails live on land, in freshwater and in the sea.