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