Biodiversity and Ecosystem services

A healthy forest ecosystem in the Northwest is home to elk, mule deer, chipmunks, ground squirrels, and a variety of plants. What is the relationship between biodiversity and available resources?

• Biodiversity is not affected by changes to available resources.

• Biodiversity decreases the amount of available resources.

• Biodiversity increases with abundant resources and decreases when resources are scarce.

• Biodiversity decreases with abundant resources and increases when resources are scarce.

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NGSS.MS-LS2-1

NGSS.MS-LS2-4

Wolves were reintroduced to Yellowstone National Park in 1995. This keystone species restored the park’s ecosystem. What is the ecological value of a keystone species?

• they influence the survival of many other species in an ecosystem.

• they prevent the ecosystem from changing and growing.

• they protect land and water resources within the ecosystem.

• They decrease the number of unwanted species in an ecosystem.

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NGSS.MS-LS2-5

Which of the following do not show how do human activities negatively affect biodiversity?

• introducing invasive species

• growing trees in deforested regions

• adding carbon dioxide to the atmosphere

• removing natural resources

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NGSS.MS-LS2-4

NGSS.MS-LS2-5

Sometimes when a bee pollinates a flower, this action is beneficial to humans. Bees are the main pollinators of many plants that humans eat, such as blueberries, potatoes, apples, celery, and strawberries. What are the benefits that humans receive from the ecosystem called?

• ecological restoration

• sustainability

• ecosystem services

• ecology

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NGSS.MS-LS2-5

Water, fuel, food, and raw materials are examples of what?

• natural resources

• cultural services

• regulating services

• cycling of matter and energy

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Pick the cultural service

• natural resources

• water cycle

• plants and animals

• recreational services

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NGSS.MS-LS2-5

Pick the regulating service

• natural resources

• water cycle and nutrients

• plants and animals

• recreational services

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NGSS.MS-ESS2-4

Pick the provisional service

• natural resources

• water cycle and nutrients

• plants and animals

• recreational services

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NGSS.MS-ESS2-4

NGSS.MS-LS2-3

NGSS.MS-LS2-5

Pick the supporting service

• natural resources

• water cycle and nutrients

• plants and animals

• recreational services

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NGSS.MS-ESS2-4

NGSS.MS-LS2-3

In what ways do humans harm the ecosystem?

• by introducing invasive species

• by working toward sustainability to maintain diversity

• by maintaining current conditions

• through conservation

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NGSS.HS-ESS3-6

NGSS.HS-LS2-6

NGSS.HS-LS2-7