Biotic and Abiotic Factors

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What are biotic factors?

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Biotic factors are the living components of an ecosystem, such as plants, animals, fungi, and microorganisms.

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NGSS.MS-LS2-4

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What are abiotic factors?

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Abiotic factors are the nonliving components of an ecosystem, including sunlight, temperature, water, soil, and air.

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NGSS.MS-LS2-3

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Give an example of a biotic factor in a forest ecosystem.

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Examples include trees, deer, birds, and insects.

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NGSS.MS-LS2-2

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Give an example of an abiotic factor in a desert ecosystem.

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Examples include sand, rocks, temperature, and sunlight.

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NGSS.MS-LS2-4

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How do biotic and abiotic factors interact in an ecosystem?

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Biotic factors depend on abiotic factors for survival; for example, plants (biotic) need sunlight and water (abiotic) to grow.

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NGSS.MS-LS2-3

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What role do abiotic factors play in determining the types of organisms in an ecosystem?

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Abiotic factors like climate and soil type influence which organisms can survive and thrive in a particular environment.

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NGSS.MS-LS2-4

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What is the significance of sunlight as an abiotic factor?

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Sunlight is crucial for photosynthesis, which allows plants to produce energy and oxygen, supporting life in ecosystems.

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NGSS.MS-LS1-6

NGSS.MS-LS2-3

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How does water quality affect biotic factors in aquatic ecosystems?

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Water quality affects the health and diversity of aquatic organisms; pollutants can harm fish and plant life.

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What is an example of a biotic factor that can change due to abiotic factors?

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The population of fish (biotic) can decrease if water temperature (abiotic) rises too high.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

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Define the term 'ecosystem'.

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An ecosystem is a community of living organisms interacting with their physical environment.