Abiotic & Biotic Factors

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What are biotic factors?

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Biotic factors are all living organisms in an ecosystem, such as plants, animals, 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 non-living components of an ecosystem, including temperature, water, sunlight, soil, and rocks.

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NGSS.MS-LS2-4

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

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Examples include trees, animals, fungi, and bacteria.

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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, temperature, and lack of water.

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NGSS.MS-LS1-5

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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

NGSS.MS-LS2-4

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What role do decomposers play in an ecosystem?

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Decomposers, such as fungi and bacteria, break down dead organic matter, returning nutrients to the soil.

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NGSS.MS-LS2-3

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What is the significance of temperature as an abiotic factor?

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Temperature affects the metabolic rates of organisms and influences the types of species that can survive in an ecosystem.

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NGSS.MS-LS1-5

NGSS.MS-LS2-4

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How can changes in abiotic factors impact biotic factors?

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Changes in abiotic factors, like a drop in temperature or a drought, can lead to stress or death in biotic factors, affecting the entire ecosystem.

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NGSS.MS-LS1-5

NGSS.MS-LS2-1

NGSS.MS-LS2-4

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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.

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What is an example of a biotic factor in an ocean ecosystem?

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Fish, coral, and marine plants are examples of biotic factors in an ocean ecosystem.