Crustacean - Quiz
  • 1. What class do crustaceans belong to?
A) Diplopoda
B) Insecta
C) Arachnida
D) Malacostraca
  • 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) Exoskeleton
B) Endoskeleton
C) Shellac
D) Carapace
  • 4. What is the largest species of crab in the world?
A) Coconut crab
B) Blue 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) Hibernation
B) Molting
C) Camouflage
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) Pistol shrimp
C) Ghost shrimp
D) Alaskan king crab
  • 7. What is the specialized appendage that some crustaceans use to clean their gills called?
A) Uropods
B) Scaphognathite
C) Pereopods
D) Chelipeds
  • 8. Which crustacean is commonly associated with freshwater habitats?
A) Crayfish
B) King crab
C) Shrimp
D) Lobster
  • 9. Which crustacean is often called a 'living fossil' due to its similar appearance over millions of years?
A) Snow crab
B) Dungeness crab
C) Coconut crab
D) Horseshoe crab
  • 10. What is the name of the long, segmented appendages found on a crayfish's tail?
A) Uropods
B) Swimmerets
C) Maxillipeds
D) Chelipeds
  • 11. How many legs do most crustaceans have?
A) 6
B) 4
C) 8
D) 10
  • 12. What is the scientific term for the study of crustaceans?
A) Carcinology
B) Malacology
C) Entomology
D) Arachnology
  • 13. What is the scientific order that includes crustaceans such as crabs, lobsters, and shrimp?
A) Primates
B) Carnivora
C) Decapoda
D) Artiodactyla
  • 14. Which crustacean is known for its bright, vibrant colors and powerful punch?
A) Rock crab
B) Mantis shrimp
C) Ghost shrimp
D) Pistol shrimp
  • 15. What is the primary diet of a barnacle?
A) Detritus
B) Plankton
C) Small fish
D) Algae
  • 16. Which crustacean is known for its bright red color and is often associated with seafood boils?
A) Crawfish
B) Wolf
C) Bear
D) Fox
  • 17. What is the meaning of the Latin word 'crustacea'?
A) Those with shells or crusted ones
B) Animals with multiple legs
C) Small aquatic animals
D) Invertebrates without exoskeletons
  • 18. Which group of arthropods do crustaceans belong to?
A) Class Insecta
B) Order Araneae
C) Phylum Annelida
D) Subphylum Crustacea
  • 19. Which clade includes both crustaceans and hexapods?
A) Arachnida
B) Mandibulata
C) Chelicerata
D) Pancrustacea
  • 20. Which of the following is not a class closely related to hexapods?
A) Remipedia
B) Cephalocarida
C) Oligostracans
D) Branchiopoda
  • 21. What is the smallest described crustacean species?
A) American lobster
B) Giant freshwater prawn
C) Japanese spider crab
D) Stygotantulus stocki
  • 22. Which feature distinguishes crustaceans from other arthropods?
A) Biramous limbs
B) Segmented body
C) Moulting process
D) Exoskeleton
  • 23. What is the main body cavity of crustaceans called?
A) Haemocoel
B) Coelom
C) Peritoneum
D) Mesentery
  • 24. Which pigment do malacostracans use for oxygen transport?
A) Haemocyanin
B) Hemoglobin
C) Myoglobin
D) Cytochrome c
  • 25. Which country produces nearly half of the world's total crustacean output?
A) China
B) Japan
C) India
D) USA
  • 26. When did shrimp and crabs first appear in the fossil record?
A) Cretaceous
B) Carboniferous
C) Jurassic
D) Triassic
  • 27. Which crustaceans attach their eggs in rows to rocks and other objects?
A) Copepods
B) Female Branchiura
C) Anostracans
D) Peracarids
  • 28. Which fossil burrow is attributed to crayfishes?
A) Ophiomorpha
B) Tesnusocaris
C) Camborygma
D) Nurra
  • 29. Which crustacean group is not widely consumed despite its large biomass?
A) Krill
B) Shrimp and prawns
C) Lobsters
D) Crabs
  • 30. Which subclass was suggested to be elevated to class status in recent classifications?
A) Branchiura
B) Mystacocarida
C) Maxillipoda
D) Copepoda
  • 31. Which class of crustaceans first appears in the fossil record with Tesnusocaris goldichi?
A) Remipedia
B) Branchiopoda
C) Malacostraca
D) Maxillopoda
  • 32. Which period saw the great radiation of crustaceans, particularly crabs?
A) Jurassic
B) Cambrian
C) Permian
D) Cretaceous
  • 33. Who first used the name 'Crustacea' in a nomenclatural valid work?
A) Morten Thrane BrĂ¼nnich
B) Pierre Belon
C) Carl Linnaeus
D) Guillaume Rondelet
  • 34. Which extinct group of crustaceans is part of the Phyllopoda class?
A) Canadaspidida
B) Mantis shrimp
C) Aeschronectida
D) Leptostraca
  • 35. Which type of crustaceans are known for being parasitic?
A) Krill
B) Woodlice
C) Peracarids
D) Crustacean lice
  • 36. Which crustacean class has no known fossil record?
A) Malacostraca
B) Maxillopoda
C) Cephalocarida
D) Branchiopoda
  • 37. Which period's deposits preserve the oldest fluvial burrows ascribed to ghost shrimps?
A) Triassic
B) Permian: Roadian
C) Cretaceous
D) Jurassic
  • 38. What is parthenogenesis in crustaceans?
A) Viable eggs are produced by a female without fertilization by a male.
B) Crustaceans reproduce through fragmentation.
C) Males and females switch roles during reproduction.
D) Eggs are fertilized externally in the water.
  • 39. What is the function of the 'gastric mill' in crustaceans?
A) Grinding food
B) Oxygenating blood
C) Excreting waste
D) Absorbing nutrients
  • 40. Where is the heart located in crustaceans?
A) At the base of the antennae
B) In the abdomen
C) Near the dorsum
D) Within the cephalothorax
  • 41. What is a common reproductive strategy among crustaceans?
A) Binary fission
B) Spore formation
C) Budding
D) Sexual reproduction
  • 42. Which crustacean has males that choose mates based on dietary differences?
A) Hemigrapsus sanguineus
B) T. californicus
C) Cephalocarida
D) Eriocheir sinensis
  • 43. Which class was recognized as non-monophyletic in recent classifications?
A) Branchiopoda
B) Maxillopoda
C) Malacostraca
D) Ostracoda
  • 44. Which DNA repair process is predominantly used by Penaeus monodon for double-strand breaks?
A) Homologous recombinational repair
B) Microhomology-mediated end joining
C) Non-homologous end joining
D) Base excision repair
  • 45. What is the earliest and most characteristic larval form of crustaceans?
A) Megalopa
B) Post-larva
C) Zoea
D) Nauplius
  • 46. What percentage of all crustaceans caught for consumption are shrimp and prawns?
A) Under 30%
B) About 50%
C) Over 60%
D) Nearly 80%
  • 47. Which crustacean appendages are typically biramous?
A) All appendages in all classes
B) Second pair of antennae and other limbs except the first pair
C) First pair of antennae only
D) No appendages
  • 48. What is a unique feature of barnacles' reproductive system?
A) They change sex during their life.
B) They have external fertilization in open water.
C) Some are hermaphrodites.
D) They reproduce only through parthenogenesis.
  • 49. Which crustacean's DNA damage response was studied after ultraviolet irradiation?
A) Daphnia pulex
B) Tigriopus japonicus
C) Penaeus monodon
D) Homarus americanus
  • 50. How do most decapods carry their eggs?
A) Between thoracic limbs
B) In external ovisacs
C) Attached to the pleopods
D) In thin-walled sacs
  • 51. What is the function of pleopods in malacostracans?
A) Antennae for sensing
B) Mouthparts for feeding
C) Abdominal appendages
D) Legs for walking
  • 52. From which period do the first true mantis shrimp fossils appear?
A) Cambrian
B) Triassic
C) Jurassic
D) Carboniferous
  • 53. What is a significant impact of crustacean invasions in the Mediterranean?
A) They improve water quality.
B) They have no noticeable effect.
C) They affect local ecosystems.
D) They increase biodiversity.
  • 54. Name a group of crustaceans that have adapted to terrestrial life.
A) Marine lobsters
B) Deep-sea shrimp
C) Coral reef fish
D) Terrestrial crabs
  • 55. How many described species are there in the subphylum Crustacea?
A) About 50,000
B) Almost 67,000
C) Less than 10,000
D) Over 100,000
  • 56. What is the function of spikes on a zoea's carapace?
A) Increase speed during swimming
B) Assist in maintaining directional swimming
C) Provide camouflage against predators
D) Serve as sensory organs
  • 57. What substance covers the eyes of some crustacean larvae for camouflage?
A) Chitin
B) Isoxanthopterin
C) Calcium carbonate
D) Protein fibers
  • 58. Which crustaceans are attributed to the fossil burrow Ophiomorpha?
A) Crabs
B) Crayfishes
C) Ghost shrimps
D) Prawns
  • 59. What type of environment do most crustaceans inhabit?
A) Aerial
B) Aquatic
C) Terrestrial only
D) Desert
  • 60. When did prawns and polychelids first appear in the fossil record?
A) Triassic
B) Jurassic
C) Cretaceous
D) Carboniferous
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