Mollusks are invertebrates, meaning that they don't have a spine. They've got a tender body that retains the center, liver, digestive system, along with other vital organs. Most mollusks Possess a mouth construction termed a radula. The radula is sort of just like a rough tongue with many small tooth. https://r9go22097.thenerdsblog.com/33886855/examine-this-report-on-r9go