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