WorksheetsQ4: Marine Molluscs
Total questions: 20
Worksheet time: 20mins
What are the three main groups of Mollusks?
Gastropods
Cephalopods
Annelids
Myriapods
Bivalves
To which group of mollusks does this squid belong?
cephalopod
bivalve
gastropod
Which is the group of mollusks that has tentacles with suckers?
Cephalopods
Bivalves
Gastropods
Myriapods
To which group of mollusks this clam belong?
Gastropods
Cephalopods
Bivalves
Arthropods
Which is the group of mollusks that has a spiral-shaped shell?
Gastropods
Cephalopods
Myriapods
Bivalves
To which group of mollusks this nautilus belong?
Cephalopods
Bivalves
Gastropods
To which group of mollusks this octopus belong?
Cephalopods
Gastropods
Bivalves
The shells of molluscs are composed of...
Silica
Cellulose
Calcium carbonate
Silica carbonate
Nudibranchs are also known as...
Sea snails
Sea slugs
Chitons
Shipworms
Cephalopods have a single large brain; other molluscs have several "local brains" called...
Ganglia
Mantles
Radulas
Nerve nets
Which of the following statements is TRUE about nudibranchs?
They eat sponges and use their spicules as protection.
They eat cnidarians and use their unfired nematocysts for protection.
They eat small octopuses and use their ink sacs to confuse predators.
They have nearly impenetrable shells, which protect them from predators.
The only cephalopod that doesn't have any kind of shell at all is the...
Nautilus
Octopus
Squid
Cuttlefish
The only cephalopod that has an external shell is the...
Nautilus
Octopus
Squid
Cuttlefish
"Mollusca" is a....
Domain
Kingdom
Phylum
Class
Which of the following organisms is best adapted for swimming?
Squid
Octopus
Cuttlefish
Nautilus
