Biology EOC- Category 5 Review - Environmental Systems

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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 where different species replace one another.

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What is primary succession?

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Primary succession occurs in lifeless areas where soil has not yet formed, such as after a volcanic eruption, and begins with pioneer species.

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What are pioneer species?

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Pioneer species are the first organisms to colonize previously uninhabited land, often including lichens and mosses.

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What is biodiversity?

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Biodiversity refers to the variety of life in a particular habitat or ecosystem, including the number of species and genetic diversity.

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What is an energy pyramid?

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An energy pyramid is a graphical representation of the energy flow in an ecosystem, showing the amount of energy available at each trophic level.

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What happens to energy as it moves up an energy pyramid?

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As energy moves up an energy pyramid, the amount of available energy decreases due to energy loss at each trophic level.

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What is a food chain?

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A food chain is a linear sequence that shows how energy and nutrients flow from one organism to another in an ecosystem.

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What is a predator-prey relationship?

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A predator-prey relationship is an interaction where one organism (the predator) hunts and eats another organism (the prey).

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What is the role of decomposers in an ecosystem?

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Decomposers break down dead organic matter, recycling nutrients back into the ecosystem and supporting plant growth.

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What is the difference between a food chain and a food web?

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A food chain is a simple linear pathway of energy flow, while a food web is a complex network of interconnected food chains.