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
Slug - Description. 1  The external anatomy of a slug includes the following... 2  Like other pulmonate land gastropods, the majority of land slugs have two pairs of 'feelers' or tentacles on their head. 3  On top of the slug, behind the head, is the saddle-shaped mantle, and under this are the genital opening and anus. more information...