Ecosystem Relationships

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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, and climate).

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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 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 do the arrows in a food chain represent?

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The arrows in a food chain represent the flow of energy from one organism to another.

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NGSS.MS-LS2-3

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What is a producer in an ecosystem?

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A producer is an organism, usually a plant, that can make its own food through photosynthesis, providing energy for other organisms.

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NGSS.MS-LS1-6

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What is a consumer?

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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 predator?

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A predator is an animal that hunts and eats other animals (prey) for food.

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NGSS.MS-LS2-2

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What is prey?

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Prey is an animal that is hunted and eaten by predators.

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What is competition in an ecosystem?

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Competition occurs when two or more organisms vie for the same resources (food, space, etc.) in an ecosystem.

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What is a parasite?

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A parasite is an organism that lives on or in a host organism and benefits at the host's expense.