- 1. What class do crustaceans belong to?
A) Arachnida
B) Diplopoda
C) Malacostraca
D) Insecta
- 2. Which crustacean is known for its powerful claw used for defense?
A) Shrimp
B) Barnacle
C) Lobster
D) Crayfish
- 3. What is the name of the hard outer shell that covers the bodies of crustaceans?
A) Endoskeleton
B) Exoskeleton
C) Carapace
D) Shellac
- 4. What is the largest species of crab in the world?
A) Coconut crab
B) Dungeness crab
C) Blue crab
D) Japanese spider crab
- 5. What is the name of the process in which crustaceans shed their exoskeleton in order to grow?
A) Reproduction
B) Molting
C) Hibernation
D) Camouflage
- 6. Which crustacean is known for its ability to produce a loud snapping sound by closing its claws quickly?
A) Pistol shrimp
B) Rock crab
C) Ghost shrimp
D) Alaskan king crab
- 7. What is the specialized appendage that some crustaceans use to clean their gills called?
A) Pereopods
B) Chelipeds
C) Scaphognathite
D) Uropods
- 8. Which crustacean is often called a 'living fossil' due to its similar appearance over millions of years?
A) Dungeness crab
B) Horseshoe crab
C) Snow crab
D) Coconut crab
- 9. What is the scientific term for the study of crustaceans?
A) Carcinology
B) Entomology
C) Malacology
D) Arachnology
- 10. What is the name of the long, segmented appendages found on a crayfish's tail?
A) Chelipeds
B) Swimmerets
C) Maxillipeds
D) Uropods
- 11. Which crustacean is commonly associated with freshwater habitats?
A) King crab
B) Lobster
C) Shrimp
D) Crayfish
- 12. What is the primary diet of a barnacle?
A) Algae
B) Detritus
C) Small fish
D) Plankton
- 13. Which crustacean is known for its bright, vibrant colors and powerful punch?
A) Pistol shrimp
B) Mantis shrimp
C) Rock crab
D) Ghost shrimp
- 14. How many legs do most crustaceans have?
A) 8
B) 6
C) 10
D) 4
- 15. What is the scientific order that includes crustaceans such as crabs, lobsters, and shrimp?
A) Primates
B) Carnivora
C) Decapoda
D) Artiodactyla
- 16. Which crustacean is known for its bright red color and is often associated with seafood boils?
A) Wolf
B) Bear
C) Fox
D) Crawfish
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