Ecosystems Test

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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 (air, water, soil) in a specific area.

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What are producers in an ecosystem?

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Producers are organisms that can make their own food using sunlight or chemical energy, such as plants and algae.

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What are consumers in an ecosystem?

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Consumers are organisms that cannot make their own food and must eat other organisms for energy, such as animals.

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What are decomposers in an ecosystem?

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Decomposers are organisms that break down dead or decaying organisms, returning nutrients to the soil, such as bacteria and fungi.

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What is the role of sunlight in an ecosystem?

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Sunlight provides energy for producers to create food through photosynthesis, which supports the entire food web.

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What is a freshwater ecosystem?

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A freshwater ecosystem is a type of ecosystem that includes bodies of water with low salt concentration, such as rivers, lakes, and ponds.

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What is a saltwater ecosystem?

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A saltwater ecosystem is a type of ecosystem that includes oceans and seas, characterized by high salt concentration.

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What is biodiversity?

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Biodiversity refers to the variety of different species of plants, animals, and microorganisms in a particular ecosystem.

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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 in an ecosystem, showing how different organisms are related.