WorksheetsZoology Quiz: Mollusca
Total questions: 20
Worksheet time: 10mins
What is the meaning of the Latin word 'molluscus'?
Hard
Soft
Shell
Animal
Which class of Mollusks contains species like clams, oysters, scallops, and mussels?
Polyplacophora
Gastropoda
Bivalvia
Cephalopoda
What is the function of the radula in mollusks?
Respiration
Protection
Locomotion
Feeding
What is the purpose of torsion in gastropods?
To enhance locomotion
To protect the head
To rotate the shell
To change the direction of coiling
Which class of Mollusks includes species like chitons?
Gastropoda
Polyplacophora
Cephalopoda
Bivalvia
Which class of mollusks includes squid, octopus, nautilus, and cuttlefish?
Class Polyplacophora
Class Bivalvia
Class Cephalopoda
Class Gastropoda
What is the main method of locomotion for cephalopods?
Swimming using fins
Crawling using suction discs
Burrowing in sand
Walking on land
Which mollusk is known for its ability to change colors, patterns, and textures to match its surroundings?
Giant Squid
Nautilus
Blue-ringed Octopus
Mimic Octopus
What is the main threat to freshwater clams in the United States?
Invasive species
Habitat destruction
Overfishing
Pollution
What is the risk associated with eating mollusks during a red tide?
Parasitic infection
Allergic reaction
Respiratory arrest
Food poisoning
Which mollusk is known for its ink defense mechanism?
Giant Clam
Squid
Blue-ringed Octopus
Mimic Octopus
What is the primary function of the foot in mollusks?
Respiration
Feeding
Locomotion
Protection
Which class of mollusks is characterized by a single, often coiled shell and a body that undergoes torsion?
Class Polyplacophora
Class Bivalvia
Class Cephalopoda
Class Gastropoda
What is the primary function of the mantle in mollusks?
Respiration
Protection
Feeding
Shell formation
What is the primary diet of most mollusks?
Plants
Small fish
Other mollusks
Mostly algae and microscopic, planktonic organisms
What is the function of the siphon in cephalopods?
Feeding
Respiration
Excretion
Jet propulsion
What is the primary function of the beak in cephalopods?
Respiration
Feeding
Locomotion
Protection
Which class of mollusks is known for having a two-part hinged shell?
Class Polyplacophora
Class Bivalvia
Class Cephalopoda
Class Gastropoda
Which mollusk is known for its ability to produce pearls?
Giant Squid
Oyster
Blue-ringed Octopus
Mimic Octopus
What is the primary function of the gills in mollusks?
Respiration
Feeding
Locomotion
Protection
