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ID: 1570119 Language: English School subject: Science Grade/level: 4 Age: 8-12 Main content: Ecosystems Other contents: food chain Add to my workbooks (204) Download file pdf Embed in my website or blog Add to Google Classroom In this worksheet, we will practice defining key terms that describe the structure of an ecosystem and outlining how different types of organisms are interdependent on each … Predict how changes in a food chain affect species in an ecosystem with this worksheet. Ecosystem. a large naturally occuring community of plants and animals that occupy a major habitat. 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