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Unusual Animal Migrations: Jellyfish Blooms - Exam
Contributed by: Flynn
  • 1. What ecological role do jellyfish blooms play?
A) They can provide food for certain species.
B) They act as predators to most fish.
C) They eliminate oxygen from water.
D) They filter pollutants from water.
  • 2. Which factor can lead to increased jellyfish populations?
A) Cold water currents
B) High pH levels
C) Eutrophication
D) Reduced salinity
  • 3. Where are jellyfish blooms most commonly observed?
A) High mountain streams
B) Freshwater lakes
C) Coastal areas
D) Open ocean
  • 4. What does the term 'medusa' refer to?
A) The polyp stage of jellyfish.
B) The larvae stage of jellyfish.
C) The mature, free-swimming stage of jellyfish.
D) A type of jellyfish predator.
  • 5. What adaptation helps jellyfish in open waters?
A) Their strong propulsion ability
B) Their ability to drift with currents
C) Their thick gelatinous bodies
D) Their ability to swim against strong currents
  • 6. Which of the following is a method to study jellyfish migration?
A) Underwater sound monitoring
B) Radioactive tagging
C) Satellite tracking
D) Airborne surveys
  • 7. Which region has reported significant jellyfish blooms?
A) The Black Sea
B) The Arctic Ocean
C) The Amazon River
D) Lake Baikal
  • 8. Why do jellyfish have a high reproductive potential?
A) They migrate during breeding season.
B) They require complex mating rituals.
C) They can reproduce both sexually and asexually.
D) They have a slow growth rate.
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