All Gastropods Have A Hard Calcium Carbonate Shell.

Mollusks exchange gases with the water through their gills. These shells are made of aragonitesecreted by the mantlelining in Fig. Snails Basic Facts About Snails Science Spatial Learners In 2021 Snail Basic Facts Facts Our data support and validate the previous claim that snail shells are comprised of 95999 calcium carbonate. All gastropods have a …