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Unusual Animal Migrations: Jellyfish Blooms - Quiz
  • 1. What ecological role do jellyfish blooms play?
A) They act as predators to most fish.
B) They can provide food for certain species.
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) Freshwater lakes
B) Coastal areas
C) High mountain streams
D) Open ocean
  • 4. Which of the following is a method to study jellyfish migration?
A) Underwater sound monitoring
B) Satellite tracking
C) Airborne surveys
D) Radioactive tagging
  • 5. Which region has reported significant jellyfish blooms?
A) The Amazon River
B) The Black Sea
C) Lake Baikal
D) The Arctic Ocean
  • 6. 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.
  • 7. What does the term 'medusa' refer to?
A) The mature, free-swimming stage of jellyfish.
B) The larvae stage of jellyfish.
C) A type of jellyfish predator.
D) The polyp stage of jellyfish.
  • 8. What adaptation helps jellyfish in open waters?
A) Their strong propulsion ability
B) Their thick gelatinous bodies
C) Their ability to drift with currents
D) Their ability to swim against strong currents
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