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1. What is an ecosystem?
A community of living organisms interacting with their environment · A type of biome with specific climate conditions · A group of similar species living together · A physical space without any living organisms
2. Which of the following is a biotic component of an ecosystem?
Water · Soil · Plants · Air
3. What is the primary source of energy for most ecosystems?
Wind · Sunlight · Water · Soil nutrients
4. Which of the following best describes a food chain?
A linear sequence of organisms through which energy flows · A complex network of feeding relationships · A diagram showing the energy flow in an ecosystem · A list of all organisms in a habitat
5. What role do decomposers play in an ecosystem?
Producers of energy · Consumers of organic matter · Break down dead organisms and recycle nutrients · Competitors for resources
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