Changing Ecosystems Flashcard

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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 soil is present but has been disturbed, such as after a forest fire or human activity.

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What are pioneer species?

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

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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 the final stage of succession.

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What role do seeds play in ecological succession?

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Seeds can be carried to bare areas by birds or wind, initiating the process of ecological succession.

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What happens after lava covers the land?

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Primary succession occurs after lava covers the land, as it creates a new environment with no soil.

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What is the difference between biotic and abiotic factors?

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Biotic factors are living components of an ecosystem (like plants and animals), while abiotic factors are non-living components (like water, soil, and climate).

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Can ecological succession occur in urban areas?

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Yes, ecological succession can occur in urban areas, especially in abandoned lots or areas disturbed by human activity.

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What is the significance of ecological succession?

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Ecological succession is significant because it helps ecosystems recover from disturbances and promotes biodiversity.

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What is a disturbance in an ecosystem?

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A disturbance is an event that significantly alters the structure or function of an ecosystem, such as a fire, flood, or human activity.