Ecosystems

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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 energy and nutrients flow between different organisms.

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What happens to the amount of matter in an ecosystem over time?

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The amount of matter in an ecosystem stays the same, as matter is neither created nor destroyed, only transformed.

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What is the primary source of energy for all life on Earth?

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The Sun is the primary source of energy for all life on Earth.

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What is a consumer in an ecosystem?

Back

A consumer is an organism that eats other organisms (plants or animals) to obtain energy.

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What is an energy pyramid?

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An energy pyramid is a model that illustrates the amount of energy available at each trophic level in a food chain.

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What is a producer in an ecosystem?

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A producer is an organism, typically a plant, that can make its own food through photosynthesis.

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What is a decomposer?

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A decomposer is an organism that breaks down dead or decaying organic material, returning nutrients to the soil.

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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 role do herbivores play in an ecosystem?

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Herbivores are consumers that eat plants, serving as a link between producers and higher-level consumers.

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What is biodiversity?

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Biodiversity refers to the variety of different species of plants, animals, and microorganisms in an ecosystem.