LS2.5 EOC Pre-Assessment

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What is secondary succession?

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

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What is primary succession?

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

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What are pioneer species?

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Pioneer species are the first organisms to colonize previously disrupted or damaged ecosystems, often helping to create conditions suitable for other species.

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What role do pioneer species play in primary succession?

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Pioneer species help to rebuild soil by breaking down rock and organic matter, facilitating the growth of other plants.

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What is the difference between primary and secondary succession?

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Primary succession occurs in lifeless areas without soil, while secondary succession occurs in areas where an ecosystem has been disturbed but soil remains.

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What is an example of a pioneer species?

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Lichens and mosses are common examples of pioneer species that can grow on bare rock.

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What is ecological succession?

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Ecological succession is the gradual process of change and replacement in the species composition of a given area.

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What is the goal of secondary succession?

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The goal of secondary succession is to restore the ecosystem to its original state after a disturbance.

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What type of succession occurs after a forest fire?

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Secondary succession typically occurs after a forest fire, as the soil remains intact and can support new growth.

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What is a climax community?

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A climax community is a stable and mature ecological community that has reached a steady state through the process of succession.