answer choices . Gastropods. Cephalopoda. Gastropods . ), which lives along the west coast of the United States, can grow to 1.5 m or more. Class Bivalvia The class Cephalopoda comprises two sub-classes: ... tebrate medicine that includes a chapter on cephalopods ... Guerra, A. answer choices . Cephalopoda is a very ancient and successful class of mollusk presently having two groups named the Nautiloidea and the Coleoidea. ... What does Cephalopod mean? Class Polyplacophora. Cephalopods include shelled and reduced-shell groups. They include some of the most intelligent creatures on the planet. answer choices . Which class of Mollusks include organisms that all have two shells? Cephalopods. ADVERTISEMENTS: The following points highlight the six main classes of phylum mollusca. Which class of Mollusks include squid, cuttlefish and octopus? Gastropods. Complete the template below by selecting a species within each of the classes Bivalvia, Gastropoda, and Cephalopoda. The bodies are generally very soft and are covered by the hard exoskeleton.They can be found in terrestrial regions as well as in the depths of the seas.You will be amazed to know that the size of the molluscans can range from 20 metres to one millimetre, with a few microscopic animals too. The single dorsal shell is thin and sub […] But the giant octopus (Enteroctopus sp. Class Gastropoda . The class Cephalopoda (“head foot” animals) includes octopuses, squids, cuttlefish, and nautilus. The classes are: 1. They display vivid coloration, typically seen in squids and octopuses, which is used for camouflage. Cephalopods . Examples of cephalopod molluscs include squid, octopus, cuttlefish, and nautilus (Fig. Amphineura 3. 3.65). Mollusca QUIZ DRAFT. Phylum Mollusca. Class # 1. The cephalopod clades are the monophyletic group of … answer explanation ... Class Cephalopoda. Class Cephalopoda. Mollusks are the second largest phylum of invertebrate animals after the Arthropoda. Gastropoda 4. The body is bilaterally symmetrical and covered by a mantle. (1992) Mollusca, Cephalopoda. These are ancient species that are found in all of the world's oceans, and are thought to have originated about 500 million years ago. Cephalopods are mollusks (Cephalopoda), a class which includes octopuses, squid, cuttlefish, and nautilus. Bivalves. Their mantle is modified into a siphon for movement via jet-propulsion, and their highly developed nervous and sensory systems include complex eyes and a centralized brain. They display vivid coloration, typically seen in squids and octopuses, which is used for camouflage. Pelecypoda or Bivalvia or Lamellibranchiata 6. Monoplacophora: 1. Their name, Cephalopod or "head-foot" in Greek, reflects the unique relationship between the cephalopod head and foot: the arms encircle the animals' head. Monoplacophora 2. The class Cephalopoda (“head foot” animals) includes octopuses, squids, cuttlefish, and nautilus. Scaphopoda 5. alternatives . 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