Enviro Unit 2: Basic Ecology and Nutrient cycles

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What process does not return CO2 into the atmosphere?

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Photosynthesis is the process that does not return CO2 into the atmosphere.

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What are organisms that produce their own food through photosynthesis called?

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Autotrophs are organisms that produce their own food mostly through photosynthesis.

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What do we call the levels in an ecological pyramid that include organisms sharing the same place in a food chain?

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Trophic Levels are the levels in an ecological pyramid that include organisms sharing the same place in a food chain.

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What are carbon sinks (reservoirs)?

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Carbon sinks (reservoirs) are areas on Earth where carbon is stored in many forms and transfers from one spot to another.

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What are biotic factors in an ecosystem?

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Biotic factors are parts of an ecosystem that are living or deal with the living, including producers, consumers, and decomposers.

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What is the role of producers in an ecosystem?

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Producers, such as plants and algae, convert sunlight into energy through photosynthesis, forming the base of the food chain.

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What is the difference between autotrophs and heterotrophs?

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Autotrophs produce their own food, while heterotrophs consume other organisms for energy.

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What is the significance of decomposers in an ecosystem?

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Decomposers break down dead organic matter, recycling nutrients back into the ecosystem.

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What is the carbon cycle?

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The carbon cycle is the process by which carbon is exchanged among the atmosphere, land, water, and living organisms.

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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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