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