Ecosystems, Food Chains & Food Webs

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What role do decomposers play in an ecosystem?

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Decomposers break down the wastes and remains of living things, returning nutrients to the soil.

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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 that can make its own food, typically through photosynthesis, such as grass.

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NGSS.MS-LS1-6

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Where do producers get their energy from?

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Producers get their energy from the Sun.

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NGSS.MS-LS1-6

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What impact did the reentry of wolves have on the elk and bison populations in Yellowstone National Park?

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The reentry of wolves helped decrease the overabundant elk and bison populations.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

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What does it mean when a population is described as scarce?

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A population is described as scarce when it becomes too small or few in number due to natural or man-made causes.

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What is a food chain?

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A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

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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.

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NGSS.MS-LS2-3

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What is the primary source of energy for all ecosystems?

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The primary source of energy for all ecosystems is the Sun.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

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How do plants contribute to the food chain?

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Plants, as producers, convert solar energy into chemical energy through photosynthesis, serving as the base of the food chain.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

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What is the difference between a herbivore and a carnivore?

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Herbivores are organisms that eat plants, while carnivores are organisms that eat other animals.