If today's maximum temperature was 14 degrees celsius and tomorrow's maximum is expected to be 28 degrees celsius will tomorrow be twice as hot as today? No. If it is zero degrees today, and 1 degree tomorrow, will it be infinitely hotter? Better to not use the concept.
Internally, slug anatomy clearly shows the effects of this rotationâbut externally, the bodies of slugs appear more or less symmetrical, except for the positioning of the pneumostome, which is on one side of the animal, normally the right-hand side. Slugs produce two types of mucus: one is
Differences in Shell. The long body and tentacles of slug is very similar to those of a snail, but the main physical difference between the two species is the shell.The snail uses its shell as an external attachment to protect and cover its body.The slug, however, has a small inner shell, which lies underneath the skin. Slugs and snails both breathe through an air hole on their mantle, called a pneumostome. On snails, the pneumostome lies is juxtaposed next to the shell.he snail uses its shell as an external attachment to protect and cover its body. The slug, however, has a small inner shell, which lies underneath the skin. Slugs and snails both breathe through an air hole on their mantle, called a pneumostome. On snails, the pneumostome lies is juxtaposed next to the shell.