Cephalopoda MCQs

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1. What is the primary characteristic that distinguishes cephalopods from other mollusks?





2. Which of the following is NOT a member of the class Cephalopoda?





3. How do cephalopods primarily move?





4. Which cephalopod is known for its ability to change color and texture?





5. The ink sac in cephalopods serves what primary purpose?





6. What type of circulatory system do cephalopods have?





7. Which of the following cephalopods is known for its large brain?





8. Cephalopods are primarily:





9. Which structure is responsible for the unique movement of cephalopods?





10. What is the primary function of the siphon in cephalopods?





11. Which of the following cephalopods has an external shell?





12. What is the main sensory organ in cephalopods?





13. How do cephalopods capture their prey?





14. Which cephalopod is known for its intelligence and problem-solving abilities?





15. Cephalopods are capable of which of the following forms of locomotion?





16. What is the primary method of reproduction in cephalopods?





17. Which of the following structures do cephalopods lack compared to other mollusks?





18. What type of vision do cephalopods typically possess?





19. The ability to squirt ink for defense is most commonly found in which group of cephalopods?





20. Which cephalopod is known for having a unique internal shell called a pen?





21. Which of the following cephalopods can regenerate lost arms?





22. The skin of cephalopods is unique because it contains:





23. Which of the following cephalopods is known for its ability to use tools?





24. The hard beak of cephalopods is primarily used for:





25. What kind of habitat do most cephalopods prefer?





26. Which cephalopod has the largest brain relative to body size of any invertebrate?





27. What do cephalopods use to manipulate objects and capture prey?





28. Which of the following features is unique to cephalopods compared to other mollusks?





29. What is the primary diet of most cephalopods?





30. The term "cephalopod" translates to:





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