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