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