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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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NGSS.MS-LS2-2

NGSS.MS-LS2-3

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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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NGSS.MS-LS2-3

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What is the original source of energy for all organisms in a food chain?

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Sunlight is the original source of energy for all organisms in a food chain.

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NGSS.MS-LS1-6

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What do the arrows in a food chain or web represent?

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The arrows show the direction in which energy is flowing between organisms.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

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What are biotic factors?

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Biotic factors are the living components of an ecosystem, including plants, animals, and microorganisms.

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What are abiotic factors?

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Abiotic factors are the non-living components of an ecosystem, such as sunlight, water, soil, and temperature.

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NGSS.MS-LS2-3

Front

What is an energy pyramid?

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An energy pyramid is a graphical representation that shows the flow of energy at different trophic levels in an ecosystem.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

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What is a producer in an ecosystem?

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A producer is an organism that can make its own food, typically through photosynthesis, such as plants.

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NGSS.MS-LS1-6

Front

What is a consumer in an ecosystem?

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A consumer is an organism that cannot produce its own food and must eat other organisms for energy.

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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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NGSS.MS-LS2-3