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What does the flow of energy through an ecosystem always begin with? Options: Primary Producers, Primary Consumers, Heterotrophs, Grass

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Primary Producers

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What shows a network of feeding relationships? Options: Food Chain, Food Web, Pyramid of Biomass, Pyramid of Energy

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Food Web

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10% of energy from trophic levels is lost as

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Heat

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What is biomass?

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amount of living tissue

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This picture shows a: Pyramid of Biomass, Pyramid of Numbers, Pyramid of Energy, Food Chain

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Pyramid of Energy