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