Where do snails get their shells? Mollusk questions?
Jul.06, 2010 in
Slugs and Snails
Are they not basically slugs? If just related, how is it that all the shells look the same? And why does salt kill slugs so easily? How do they breed? What do they eat?
July 13th, 2010 at 1:36 am
Slugs are snails with no, or very small, shells. They are actually different sizes and colors and shapes. Slugs and snails skin doesn’t keep fluids in or out very well. The moisture in their bodies is victim to the moisture in their environment. If you pour salt on a snail the concentration of water inside the snail is much than the salt. Because of osmosis, movement of fluids across a semipermeable membrane, fluid moves from inside the snail’s body to the salt. This is an natural phenomenon as concentrations of fluids try to equilibrate. The salt takes on the moisture and the snail’s body shrivels due because of the lack of water. Snails can have both male and female sex organs and so when they mate they can both lay eggs. They eat vegetation, and can be the bane of gardeners.
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