Land snails and slugs produce mucus, but so does every other kind of gastropod, from marine, freshwater and terrestrial habitats. The reproductive system of gastropods also produces mucus internally from special glands.
Dry ice was discovered rather than invented. It was first discovered by Charles Thilorier a French chemist in 1834. Check link below for more information on dry ice and dry i â¦ ce makers.
Its name is derived from the fact that it does not turn into liquid when heated and instead changes directly into gas. It has a lower temperature when compared to water ice and does not leave any residue. Dry ice can be used to preserve ice cream, foods etc. Dry ice can cost between $.075 and $3.00 per pound. This price will depend on the retailer and the geographical location.