Quiz  /  Mollusca Class 12 MCQ Questions With Answers

  • 1. 
    What is the radula used for?

  • Locomotion
  • Feeding
  • Swimming
  • Digging

  • 2. 
    Which part of the Mollusk body is specialized for burrowing, feeding, and movement?

  • trochophores
  • visceral mass
  • mantle
  • foot

  • 3. 
    What are trochophores?

  • A class of mollusks
  • A sessile larval form of a mollusk
  • A motile larval form of a mollusk
  • A type of worm

  • 4. 
    Which TYPE of mollusk has two shells?

  • Bivalve
  • Gastropod
  • Cephalopod

  • 5. 
    How many overlapping plates make up a chiton's shell?

  • 7
  • 10
  • 6
  • 8

  • 6. 
    Molluscs that live in a tusk like shell is open at both ends belong to the class:

  • Polyplacophora
  • Scaphopoda
  • Cephalopoda
  • Gastropoda

  • 7. 
    Which of the following is NOT a class of mollusk?

  • Gastropods
  • Bivalves
  • Cephalopods
  • Porifera

  • 8. 
    What kingdom do squid belong to?

  • Mollusca
  • Animalia
  • Cephalopoda
  • Porifera

  • 9. 
    What are two defining traits of a mollusk?

  • Soft-Bodied
  • Internal or External Shell
  • Stomach
  • Both A & B

  • 10. 
    What does cephalopod translate as?

  • Head Foot
  • Foot
  • Head Arms
  • Arms

  • 11. 
    11

  • Mantle
  • Gills
  • Visceral Mass
  • Adductor Muscles

  • 12. 
    These molluscs have a head and a modified foot that are now arms or tentacles.

  • Cephalopods
  • Nudibranches
  • Gastropods
  • Bivalves
  • Ctenidia

  • 13. 
    How do bivalves feed?

  • Filter feeders
  • Radula
  • Tentacles

  • 14. 
    The shell of a mollusc is made out of what compound?

  • Calcium Carbonate
  • Calcium Phosphate
  • Calcium
  • Iron Phosphate
  • Strontium Chloride

  • 15. 
    What does the term mollusca mean in Latin?

  • Soft-bodied
  • Hard-bodied
  • Foot
  • Slimy
  • Seafloor

  • 16. 
    Cephalopods use these colored pigment cells that can contract and expand in order to produce colors, textures and patterns.

  • Chromatophores
  • Ctenidia
  • Olfactory Receptors
  • Radulations
  • Mantle Pores

  • 17. 
    Which part of the Mollusk body contains organs?

  • Foot
  • Visceral Mass
  • Trochophore
  • Mantle

  • 18. 
    What class of molluscs does the nautilus belong to?

  • Bivalvia
  • Gastropoda
  • Cephalopoda
  • Cnidaria

  • 19. 
    Mollusks that have 2 hinged shells belong to which class.

  • cephalopods
  • gastropods
  • arthropods
  • bivales

  • 20. 
    Can form pearls

  • bivalves
  • cephalopods
  • gastropods
  • cephalopods, bivalves, Gastropods

  • 21. 
    Which class of mollusca is pictured?

  • bivalvia
  • gastropoda
  • cephalopoda

  • 22. 
    What class of mollusc is pictured?

  • bivlave
  • gastropod
  • cephalopod

  • 23. 
    All classes of molluscs reproduce sexually.

  • true
  • false

  • 24. 
    Which of the following is NOT a class of molluscs?

  • bivalves
  • crustaceans
  • gastropods
  • cephalopods

  • 25. 
    Cephalopods have beaks.

  • true
  • false

  • 26. 
    Has no head distinction

  • bivalves
  • cephalopods
  • gastropods
  • all of the above

  • 27. 
    Which class of mollusks are represented by both terrestrial, freshwater, and saltwater species?

  • cephalopods
  • gastropods
  • bivalves
  • porifera

  • 28. 
    The cephalopods are the only class of mollusc that have a prominent head structure.

  • true
  • false
Report Question
warning
access_time
  Time