Intro Ecosystems and Energy Flow Practice

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What is an ecosystem?

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An ecosystem is a community of living organisms (plants, animals, and microorganisms) interacting with their physical environment (soil, water, and climate) in a specific area.

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What is energy flow in an ecosystem?

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Energy flow refers to the transfer of energy from one organism to another through food chains and food webs, starting from producers to various levels of consumers.

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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 through photosynthesis or chemosynthesis, such as plants and algae.

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What is a primary consumer?

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A primary consumer is an organism that eats producers; they are typically herbivores, such as rabbits and deer.

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What is a secondary consumer?

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A secondary consumer is an organism that eats primary consumers; they can be carnivores or omnivores, such as snakes and some birds.

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What is a food chain?

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A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.

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What is a food web?

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A food web is a complex network of interconnected food chains that illustrates how different organisms are related through feeding relationships.

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What role do decomposers play in an ecosystem?

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Decomposers break down dead organic matter, returning nutrients to the soil and making them available for producers.

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What is photosynthesis?

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Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll.

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What is cellular respiration?

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Cellular respiration is the process by which organisms convert glucose and oxygen into energy, carbon dioxide, and water.