Ecosystems Summative Assessment

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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 biotic factors?

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Biotic factors are the living components of an ecosystem, such as plants, animals, and microorganisms.

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What are abiotic factors?

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Abiotic factors are the non-living components of an ecosystem, including sunlight, water, temperature, and soil.

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How does deforestation affect animal populations?

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Deforestation removes habitats and food sources, leading to a decline in animal populations.

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What is habitat loss?

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Habitat loss is the destruction or alteration of the natural environment where organisms live, often due to human activities like deforestation.

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What is the relationship between land clearing and wildlife populations?

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As more land is cleared for human use, wildlife populations often decrease due to loss of habitat.

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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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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 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, recycling nutrients back into the soil and supporting plant growth.

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What is biodiversity?

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Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the number of different species.