How to Identify and Classify Shrimp
  • 1. What is the primary body section that distinguishes shrimp from other crustaceans?
A) Elongated abdomen with swimming pleopods
B) Large claws
C) Flattened body
D) Lack of antennae
  • 2. Which feature is NOT typically used to classify shrimp?
A) Eye color
B) Presence of rostrum teeth
C) Shape of telson
D) Gill structure
  • 3. What is the rostrum?
A) The spine projecting from the head
B) The tail fan
C) The internal skeleton
D) The walking legs
  • 4. Penaeid shrimp are characterized by having...
A) Lamellar gills
B) No gills
C) External gills
D) Branched gills
  • 5. Caridean shrimp are characterized by having...
A) Lamellar gills
B) No gills
C) External gills
D) Branched gills
  • 6. Which is a common identifying characteristic of Penaeid shrimp?
A) Rostrum with teeth both dorsal and ventral
B) A very short rostrum
C) No rostrum
D) Rostrum with teeth only on the dorsal side
  • 7. Which is a common identifying characteristic of Caridean shrimp?
A) Rostrum typically with teeth only on the dorsal side
B) No rostrum
C) Rostrum with teeth both dorsal and ventral
D) A very short rostrum
  • 8. What are pleopods used for?
A) Swimming
B) Grasping prey
C) Walking
D) Digging
  • 9. What is the telson?
A) A walking leg
B) An antenna
C) The central part of the tail fan
D) The heart
  • 10. Why is gill structure important for shrimp classification?
A) It is related to the shrimp's color
B) It differentiates between Penaeid and Caridean shrimp
C) It determines the shrimp's swimming speed
D) It indicates the shrimp's diet
  • 11. Which family do tiger prawns belong to?
A) Alpheidae
B) Penaeidae
C) Caridae
D) Palaemonidae
  • 12. Which of these is a Caridean shrimp?
A) Pink Shrimp
B) Brown Shrimp
C) Cleaner Shrimp
D) Whiteleg Shrimp
  • 13. What type of environment do many Caridean shrimp inhabit?
A) Deep sea vents
B) Polar regions
C) Freshwater or brackish water
D) Open ocean
  • 14. What is the function of the carapace?
A) Used for sensing
B) Used for swimming
C) Used for feeding
D) Protects the cephalothorax
  • 15. What are pereiopods?
A) Antennae
B) Walking legs
C) Mouthparts
D) Swimming legs
  • 16. Which is the primary way shrimp osmoregulate?
A) Exoskeleton
B) Antennae
C) Heart
D) Gills
  • 17. What is the function of uropods?
A) Used for sensing chemicals
B) Help form the tail fan for swimming
C) Used for walking
D) Used for feeding
  • 18. What does the term 'decapod' refer to?
A) No legs
B) Ten legs
C) Five legs
D) Twelve legs
  • 19. What is the significance of the hepatic spines in shrimp classification?
A) They determine swimming speed
B) They are always present
C) They are always absent
D) They are present or absent depending on the species
  • 20. Which type of shrimp is known for its symbiotic relationships?
A) All shrimp
B) No shrimp
C) Penaeid shrimp
D) Caridean shrimp (some species)
  • 21. What is the most common commercial use of shrimp?
A) Food
B) Scientific research only
C) Medicine
D) Aquarium pets
  • 22. How are shrimp typically harvested?
A) Hand-picking only
B) Trawling
C) Bait traps only
D) Spearfishing
  • 23. What is the molting process in shrimp?
A) Changing color
B) Regrowing lost limbs
C) Hibernation
D) Shedding of the exoskeleton
  • 24. What is the meaning of the term 'benthic' when referring to shrimp?
A) Living on land
B) Living in the water column
C) Living on or near the seafloor
D) Living in freshwater
  • 25. The presence or absence of a postorbital spine can help classify shrimp. Where is it located?
A) On the tail
B) On the walking legs
C) On the rostrum
D) Behind the eye
  • 26. Which of the following characteristics is LEAST helpful in identifying shrimp species?
A) Shape of the carapace
B) Arrangement of gills
C) Weight
D) Number of rostrum teeth
  • 27. What is the primary food source for many shrimp species?
A) Large fish
B) Detritus and small organisms
C) Sunlight
D) Seaweed only
  • 28. What role do shrimp play in the marine ecosystem?
A) Only predator
B) Decomposers only
C) Only prey
D) Both prey and predator
  • 29. What is the function of the statocyst in shrimp?
A) Pumping blood
B) Balance and orientation
C) Seeing underwater
D) Smelling food
  • 30. What is a 'mysis' stage in shrimp development?
A) A reproductive stage
B) A molting stage
C) A larval stage
D) An adult stage
Created with That Quiz — where a math practice test is always one click away.