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The balance in ecosystems can be affected positively or negatively by natural and human actions.

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The balance in ecosystems can be affected positively or negatively by natural and human actions.

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Food webs are interacting  food chains in which matter cycles  and energy flows.

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Food webs are interacting  food chains in which matter cycles  and energy flows.

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Energy flows through food chains from the sun ,through producers, consumers and decomposers.

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Energy flows through food chains from the sun ,through producers, consumers and decomposers.

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Decomposers breakdown the  matter and return it to the soil to be used again by producers.

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Decomposers breakdown the  matter and return it to the soil to be used again by producers.

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Consumers get nutrients from producers (herbivores) or from other consumers (carnivores, omnivores).

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Consumers get nutrients from producers (herbivores) or from other consumers (carnivores, omnivores).

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Producers (plants) convert the sun's energy into nutrients through photosynthesis.

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Producers (plants) convert the sun's energy into nutrients through photosynthesis.

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Food chains convert the sun's energy into nutrients.

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Food chains convert the sun's energy into nutrients.

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Matter cycles and energy flows in food chains and food webs.

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Matter cycles and energy flows in food chains and food webs.

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Examples of adaptations include: Island Fox's sense of smell, use of blubber for insulation,  shape of seeds for dispersal.

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Examples of adaptations include: Island Fox's sense of smell, use of blubber for insulation,  shape of seeds for dispersal.

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Adaptations provide an advantage in meeting  those needs.

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Adaptations provide an advantage in meeting  those needs.

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Living things have needs that are met by the envirobment.

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Living things have needs that are met by the envirobment.

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Biomes have specific biotic and abiotic factors that make them unique.

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Biomes have specific biotic and abiotic factors that make them unique.

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Biotic and abiotic components interact

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Ecosystems have biotic (living) and abiotic (non-living) components

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Ecosystems are communities of organisms interacting with each other and their environment.