Table of contentsVetebrates - InvertebratesObserving roman snails or pond snails:head, foot, body-sacshellsensesfeedingbreathingmovementSnails - main characteristics:head: senses, feedingfoot: movementbody-sac: organs, mantle, shellReproductionCompare a slug to a snailDifferent snails:snails living on landfreshwater snailsmarine snailsKeywords: English-German |