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
A slug or snail moves by rhythmic waves of muscular contraction on the underside of its foot. At the same time a layer of mucus is secreted, which helps smooth the slugâs path across the ground. Slugs and snails have two pairs of retractable tentacles on their head. The upper, optic tentacles, have light-sensitive eyespots on the ends. Each eye-stalk can move independently and can be re-grown if lost.