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, air) 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 are producers?

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Producers are organisms, like plants and algae, that can make their own food through photosynthesis, serving as the base of the food chain.

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What are consumers?

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Consumers are organisms that cannot produce their own food and rely on eating other organisms for energy. They are classified into herbivores, carnivores, and omnivores.

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What are decomposers?

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Decomposers are organisms, such as bacteria and fungi, that break down dead organic material, returning nutrients to the soil and completing the nutrient cycle.

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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, starting from producers to various levels of consumers.

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What is a food web?

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A food web is a complex network of interconnected food chains in an ecosystem, illustrating how different organisms are related through feeding relationships.

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What is a trophic level?

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A trophic level is a position in a food chain or food web, defined by how an organism obtains its energy, such as producers, primary consumers, secondary consumers, and tertiary consumers.

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What is a herbivore?

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A herbivore is an organism that primarily eats plants. Examples include cows, rabbits, and deer.

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What is a carnivore?

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A carnivore is an organism that primarily eats other animals. Examples include lions, sharks, and eagles.