Relationships in an Ecosystem

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What is an ecosystem?

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An ecosystem is a community of living organisms (plants, animals, and microorganisms) interacting with their physical environment (soil, water, air) in a specific area.

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What is a food chain?

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A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.

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What is a food web?

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A food web is a complex network of interconnected food chains in an ecosystem, showing how different organisms are related through feeding relationships.

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What is a primary consumer?

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A primary consumer is an organism that eats producers (plants) to obtain energy.

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What is a secondary consumer?

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A secondary consumer is an organism that eats primary consumers to obtain energy.

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What is a tertiary consumer?

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A tertiary consumer is an organism that eats secondary consumers to obtain energy.

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What role do decomposers play in an ecosystem?

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Decomposers break down dead organic matter, returning nutrients to the soil and helping to recycle energy within the ecosystem.

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What is the role of producers in an ecosystem?

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Producers, such as plants, create their own food through photosynthesis and provide energy for primary consumers.

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What does the arrow in a food chain or web represent?

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The arrow indicates the direction of energy flow from one organism to another.

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What is symbiosis?

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Symbiosis is a close and long-term interaction between two different species, which can be beneficial, harmful, or neutral.