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