8. The most advanced molluscs belong to the class _______ (a) Amphineura (b) Cephalopoda (c) Gastropoda (d) Monopacophora
The devil fish or giant devil ray (Mobula mobular) is a species of ray in the family Mobulidae. It is currently listed as endangered, mostly due to bycatch mortality in unrelated fisheries.
Cephalopod molluscs Cephalopod molluscs, such as squid, cuttlefish, and octopuses, are among the most neurologically advanced of all invertebrates—and either the giant squid or the colossal squid is the largest known invertebrate species.
