This phylum includes the rare Monoplacophora, the only trace of which was in fossils until their rediscovery in 1952. Members of one class in this phylum possess a lid-like structure called an operculum. Its members contain a non-muscular region known as the visceral mass, which contains all their body organs, and they use odontophores to support their rows of teeth, known as radulae. Classes in this phylum include cephalopods and gastropods. For 10 points, name this invertebrate phylum that includes cuttlefish, squids, clams, and snails.
This phylum includes the rare Monoplacophora, the only trace of which was in fossils until their rediscovery in 1952. Members of one class in this phylum possess a lid-like structure called an operculum. Its members contain a non-muscular region known as the visceral mass, which contains all their body organs, and they use odontophores to support their rows of teeth, known as radulae. Classes in this phylum include cephalopods and gastropods. For 10 points, name this invertebrate phylum that includes cuttlefish, squids, clams, and snails.
This phylum includes the rare Monoplacophora, the only trace of which was in fossils until their rediscovery in 1952.
Mollusca [accept Mollusks]