Ecology Review

Front

What is primary succession?

Back

Primary succession is the process of ecological change that occurs in an area where no soil exists, starting with bare rock and leading to the establishment of a biological community, often beginning with lichens.

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What are producers in an ecosystem?

Back

Producers are organisms that can make their own food through photosynthesis or chemosynthesis, such as algae, grasses, and trees.

Front

In a food web, which organism typically has the highest concentration of toxins?

Back

The organism at the top of the food chain, such as a hawk, typically has the highest concentration of toxins due to biomagnification.

Front

What is a population in ecological terms?

Back

A population is defined as two or more members of the same species living and interacting in a specific area.

Front

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 community but left the soil intact.

Front

What role do decomposers play in an ecosystem?

Back

Decomposers break down dead organic matter, returning nutrients to the soil and making them available for producers.

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among various organisms in an ecosystem, illustrating how energy and nutrients flow.

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What is the difference between a community and a population?

Back

A community consists of all the different populations of species living and interacting in a particular area, while a population refers to individuals of the same species.

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What is an ecosystem?

Back

An ecosystem is a community of living organisms interacting with their physical environment, including both biotic and abiotic factors.

Front

What is biomagnification?

Back

Biomagnification is the process by which the concentration of toxins increases in organisms at each successive level of the food chain.