Quiz  /  Mollusca Class 10 MCQ Questions With Answers

  • 1. 
    What kingdom do squid belong to?

  • Mollusca
  • Animalia
  • Cephalopoda
  • Porifera

  • 2. 
    Why is a ridged gill surface more advantageous than a flat gill surface?

  • To catch krill
  • Increases surface area which increases gas exchange potential
  • Increase surface area to increase blood filtration
  • To increase movement

  • 3. 
    How do mollusks obtain food?

  • Filter feeders
  • Carnivores
  • Herbivores
  • All are correct

  • 4. 
    What phylum do squid belong to?

  • Mollusca
  • Animalia
  • Cephalopoda
  • Porifera

  • 5. 
    What are the three major classes of mollusks?

  • Gastropods
  • Bivalves
  • Cephalopods
  • All of above

  • 6. 
    What are two defining traits of a mollusk?

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

  • 7. 
    Which is not why a giant squid is a formidable predator?

  • Strong/Muscular arms and tentacles
  • Large, well developed eyes
  • Small beak
  • Strong specialized mouth with toxic saliva

  • 8. 
    7

  • Mantle
  • Gills
  • Anterior Adductor Muscle
  • Posterior Adductor Muscle

  • 9. 
    Body parts do all mollusks posses =

  • Foot
  • Mantle
  • Shell
  • Visceral Mass
  • All of above

  • 10. 
    How do squid obtain their food?

  • Filter feeders
  • Carnivores
  • Herbivores
  • All are correct

  • 11. 
    What does cephalopod translate as?

  • Head Foot
  • Foot
  • Head Arms
  • Arms

  • 12. 
    Which of the following is NOT one of the body parts all mollusks have in common?

  • Beak
  • Shell
  • Mantle
  • Visceral Mass

  • 13. 
    10

  • Mantle
  • Gills
  • Visceral Mass
  • Adductor Muscles

  • 14. 
    9

  • Mantle
  • Gills
  • Adductor Muscles
  • Foot

  • 15. 
    The squid brain is the most __________________ invertebrate brain and is composed of the typical molluscan ganglia that have fused

  • complex
  • simple
  • compelling
  • closed

  • 16. 
    The squid has a well developed _________________ circulatory system

  • Closed
  • Open
  • IDK
  • Well developed

  • 17. 
    What phylum do clams belong to?

  • Mollusca
  • Animalia
  • Cephalopoda
  • Porifera

  • 18. 
    1 & 2

  • Siphons
  • Gills
  • Adductor Muscles
  • Feet

  • 19. 
    11

  • Mantle
  • Gills
  • Visceral Mass
  • Adductor Muscles

  • 20. 
    What structure do snails use for feeding?

  • Scolex
  • Radula
  • Fibula
  • Tentacles

  • 21. 
    Where do fertilized eggs develop?

  • Uterus
  • Externally
  • Cervix
  • Gills

  • 22. 
    How do zebra mussels get moved from one body of water to another by humans?

  • They swim
  • Humans activity
  • They move upstream using their tongue as a paddle
  • Their parasitic larva hitches a ride on birds

  • 23. 
    How do clams obtain their food?

  • Filter feeders
  • Carnivores
  • Herbivores
  • All are correct
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