character: Coral
topic: Coral Reefs as Ecosystem Engineers in Marine Biomes
grade: 9
subject: Geography
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character: Coral Reef Fish
topic: Roles of Coral Reef Fish in Ecosystem Dynamics
grade: 9
subject: Geography
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character: Seagrass
topic: Seagrasses as Key Components of Marine Ecosystems
grade: 9
subject: Geography
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character: Mangroves
topic: Mangroves' Importance in Coastal Ecosystems
grade: 9
subject: Geography
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