6th Unit 3 Earth's Biomes & Ecosystems

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What are pioneer species?

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Pioneer species are the first organisms to colonize previously uninhabited land, such as after a volcanic eruption. They help create soil by breaking down rock.

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What role do pioneer species play in ecological succession?

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Pioneer species break down rock into soil, allowing other plants to grow and facilitating ecological succession.

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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, often following a disturbance.

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NGSS.MS-LS2-4

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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.

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What is secondary succession?

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Secondary succession occurs in areas where a disturbance has happened but soil and some organisms still exist, such as after a forest fire.

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NGSS.MS-LS2-4

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How does constructing a dam affect water quantity?

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Constructing a dam can alter the flow of water, affecting the quantity of water available downstream.

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NGSS.MS-ESS3-4

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What is eutrophication?

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Eutrophication is the process by which water bodies become overly enriched with nutrients, leading to excessive growth of algae and depletion of oxygen.

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NGSS.HS-LS2-2

NGSS.HS-LS2-3

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How can chemical fertilizers affect water quality?

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If chemical fertilizers run off into nearby water bodies, they can cause eutrophication, harming aquatic life.

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

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What is the difference between primary and secondary succession?

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Primary succession starts on bare rock without soil, while secondary succession occurs in areas where soil remains after a disturbance.

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What are some ways to save energy?

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Examples of energy-saving actions include turning off lights when not in use and using energy-efficient appliances.

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NGSS.MS-PS3-3