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The Role of Whales in Ocean Ecosystems
  • 1. What is the primary role of whales in ocean ecosystems?
A) Plastic recycling
B) Coastal erosion prevention
C) Nutrient cycling
D) Coral growth
  • 2. Which type of whale is known for its complex vocalizations?
A) Sperm whale
B) Orca
C) Humpback whale
D) Blue whale
  • 3. How do whales help regulate the size of fish populations?
A) Competing for food
B) Predation
C) Overgrazing seaweed
D) Building nests
  • 4. How do whales affect marine biodiversity?
A) Decreasing habitat variety
B) Promoting algal blooms
C) Supporting various species
D) Encouraging invasive species
  • 5. What is a significant ecological role of the sperm whale?
A) Deep-sea nutrient cycling
B) Shallow water filtering
C) Coastal fecal solution
D) Cold water temperature regulation
  • 6. Which nutrient do whale feces primarily release into the ocean?
A) Nitrogen
B) Calcium
C) Iron
D) Phosphorus
  • 7. Which ecosystem is significantly affected by whale activity?
A) Coastal wetlands
B) Freshwater lakes
C) Pelagic zone
D) Estuaries
  • 8. What do scientists study to understand whale population health?
A) Sediment composition
B) Genetic diversity
C) Water temperature
D) Coastal vegetation
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