U1 -L3 Quiz (8th)

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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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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Steven lives on a farm in Iowa, which is known for its fertile soil and abundant crop production. His family grows corn and raises hogs, so their livelihood is tied to the ecosystem. When he goes to sell his family's produce at the local market, what kind of value is this?

• Direct Value

• Indirect Value

Steven lives on a farm in Iowa, which is known for its fertile soil and abundant crop production. His family grows corn and raises hogs, so their livelihood is tied to the ecosystem. Steven has multiple trees that surround his house and his barn, which provide shade on hot summer days. What kind of value is this?

• Direct Value

• Indirect Value

Identify and explain three factors that affect biodiversity.

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How do human activities negatively affect biodiversity? Choose the three that apply.

• introducing invasive species

• growing trees in deforested regions

• enacting captive breeding programs

• removing natural resources

• adding carbon dioxide to the atmosphere

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Biodiversity is the variety of lions in a forest ecosystem. T or F?

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What is Biodiversity?

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Give me one example of how humans negatively impact biodiversity?

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Humans have had a significant negative impact on the environment, having altered 75% of the Earth's land and 66% of the ocean. Considering this information, what is one way we can help reduce this impact?

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