Chapter 7 Test Review- Ecological Interactions

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What is a secondary consumer?

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A secondary consumer is an organism that eats primary consumers (herbivores) in a food web. Example: A snake that eats mice.

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What is primary succession?

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Primary succession is the process of ecological change that occurs in an area where no soil exists, such as after a volcanic eruption or glacier retreat.

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What is secondary succession?

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Secondary succession is the process of ecological change that occurs in an area where a disturbance has destroyed an existing ecosystem but left the soil intact.

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What role do pioneer species play in ecological succession?

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Pioneer species, like mosses and lichens, are the first organisms to colonize barren environments, helping to create soil for other species.

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What is an ecosystem?

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An ecosystem is a community of living organisms interacting with their physical environment.

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What is a food web?

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A food web is a complex network of feeding relationships among organisms in an ecosystem.

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What is the significance of biodiversity in an ecosystem?

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Biodiversity contributes to ecosystem stability, resilience, and productivity.

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What happens to an ecosystem after a flood?

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After a flood, ecosystems may undergo secondary succession, leading to the recovery of species and restoration of balance.

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What is the difference between primary and secondary consumers?

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Primary consumers are herbivores that eat plants, while secondary consumers are carnivores that eat primary consumers.

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How do predators affect prey populations?

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Predators help control prey populations, maintaining balance in the ecosystem.