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phylum mollsuca
| Question | Answer |
|---|---|
| Molluscs have shells made of. | chitin |
| Chitons, snails, clams and squid all belong to this phylum: | mollusca |
| Be able to pair up common names to the class they belong to: snails, squid, mussels, scallops, clams. | clams NO GASTROPOD |
| What does the visceral mass contain? | everything but the headfoot |
| The digestive system of molluscs is found in the: | visceral mass |
| What system within the molluscs contains the odontophore? | digestive |
| What system within the molluscs contains the nephridium? | excretory system |
| The structure used for secreting the shell of many molluscs is called the: | mantle |
| The radula functions to: | scrape algae |
| The outer layer of the molluscan shell is called the ____ layer. | periostracum |
| What are the three layers of the molluscan shell? | mantle is NOT a layer |
| Molluscs with a tubular shell and sheath foot are? | tusk shell aka scaphopods |
| Animals covered by eight overlapping shells on their dorsal surface are? | chitons |
| Most intertidal chitons are considered? | grazers |
| . Intertidal chitons and snails use the ____ as a means of attachment to the rocks | foot (pod) |
| This class of Mollusk has a shell that is opened at both ends, foot comes out the larger opening and water enters/exits through the smaller opening. They are known as tusk shells. | scaphopoda |
| Many gastropods have external shells composed of? | chitin |
| Which genus of gastropod has been reported to have caused human fatalities? | conus |
| Nudibranchs belong to the class ____ of the phylum Mollusca. | gastropoda |
| The ____ have cerata on their surface for gas exchange. | nudibranks |
| The opening of the shells of some gastropods is protected by the? | operculum |
| The most common planktonic stage of the majority of marine gastropod species is the? | veliger larva |
| Molluscs having two jointed valves or shells belong to the class: | bivalve |
| Most bivalves are what type of feeders? | filter feeder |
| The valves of bivalves are closed by the action of? | adductor muscles |
| The siphuncle of nautiloids is used for | regulates water and gas within chanbers |
| Chromatophores are specialized cells in cephalopods that are responsible for? | color changing |
Created by:
Johnsonnatalie