Invertebrates 2Online version Answer some questions about invertebrates. by Gabriel Pérez Comendador 1 What are invertebrates? Written answer 2 Invertebrates are classified into arthropods, worms, echinoderms, molluscs, ... Written answer 3 Arthropods are classified into insects, myriapods, crustaceans and... Written answer 4 Where do snails and slugs live? Written answer 5 What kind of molluscs are there? Bivalves,... Written answer 6 What kind of invertebrates are mussels and clams? Written answer 7 What kind of molluscs are those which have no external protective covering, but some have a shell hidden under the skin? Written answer 8 What kind of invertebrates have radial symmetry and crawl on the seabed on hundreds of tube feet? Written answer