Flashcard - Matter and Energy in Ecosystems

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What is a closed system?

Back

A closed system is a physical system that does not allow matter to enter or leave, but can exchange energy with its surroundings.

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What is an autotroph?

Back

An autotroph is an organism that produces its own food using light, water, carbon dioxide, or other chemicals. They are primary producers in an ecosystem.

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What is the role of autotrophs in an ecosystem?

Back

Autotrophs capture energy from the sun and convert it into chemical energy through photosynthesis, forming the base of the food chain.

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What is a terrarium?

Back

A terrarium is a closed environment that simulates a natural ecosystem, allowing plants and small animals to thrive.

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What does a terrarium primarily demonstrate?

Back

A terrarium primarily demonstrates ecosystem balance, showcasing how organisms interact within a closed system.

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What is an open system?

Back

An open system is a system that can exchange both matter and energy with its environment.

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What is an example of a closed system?

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A sealed terrarium is an example of a closed system, as it recycles water and gases without external input.

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What are outputs of a plant system?

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Outputs of a plant system include oxygen and sugar, which are produced during photosynthesis.

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What is the significance of producers in an ecosystem?

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Producers, like plants, are crucial as they convert solar energy into chemical energy, supporting all other life forms.

Front

What is the difference between a closed system and an open system?

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A closed system allows energy exchange but not matter exchange, while an open system allows both.