character: Producers
topic: Role of Producers in Ecosystems
grade: 9
subject: Chemistry
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character: Photosynthesis
topic: Chemical Process in Producers
grade: 9
subject: Chemistry
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character: Ecological Pyramid
topic: Hierarchy of Ecosystem Roles
grade: 9
subject: Chemistry
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character: Food Chain
topic: Producers and Their Place in Food Chains
grade: 9
subject: Chemistry
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