Ecology Review

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What is primary succession?

Back

Primary succession is the process of ecological change that occurs in an environment that has not previously been inhabited, starting on bare rock.

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What is secondary succession?

Back

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.

Front

What is the main difference between primary and secondary succession?

Back

Primary succession starts on bare rock, while secondary succession starts in areas with existing soil.

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What is a food web?

Back

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

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What is a food chain?

Back

A food chain is a linear pathway showing who eats whom in an ecosystem.

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What role do plants play in a food chain?

Back

Plants typically play the role of producers in a food chain.

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What is parasitism?

Back

Parasitism is a type of symbiosis where one organism benefits at the expense of the other.

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What is commensalism?

Back

Commensalism is a type of symbiosis where one organism benefits and the other is unaffected.

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What is mutualism?

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Mutualism is a type of symbiosis where both organisms benefit from the relationship.

Front

What are producers in an ecosystem?

Back

Producers are organisms, like plants, that create their own food through photosynthesis.