Ecology Review 3

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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 ecosystem previously existed, 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 an ecosystem has previously existed but has been disturbed or destroyed, such as after a forest fire or agricultural abandonment.

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What is a carnivore?

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A carnivore is an organism that primarily eats meat. Examples include lions, tigers, and wolves.

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What is a herbivore?

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A herbivore is an organism that primarily eats plants. Examples include cows, deer, and rabbits.

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What is an omnivore?

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An omnivore is an organism that eats both plants and animals. Examples include humans, bears, and pigs.

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What are pioneer species?

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Pioneer species are the first organisms to colonize a barren environment in the process of ecological succession, such as lichens and mosses.

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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, including both biotic and abiotic components.

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What is a biotic factor?

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A biotic factor is any living component of an ecosystem, such as plants, animals, fungi, and bacteria.

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What is an abiotic factor?

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An abiotic factor is any non-living component of an ecosystem, such as sunlight, water, temperature, and soil.

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What is ecological succession?

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Ecological succession is the process by which ecosystems change and develop over time, involving a series of stages from pioneer species to a mature ecosystem.