Env Unit 1 Test Review

What is an endangered species?

• A species that is found in an ecosystem by natural processes

• A species that has a strong impact on a community

• A species at serious risk of extinction

• A nonnative species that spreads widely in a community

Which of the following is NOT a threat to biodiversity?

• Deforestation

• Urbanization

• Wildlife Protection Agency

• Introduction of invasive species

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-5

What leads to greater stability in ecosystems?

• Low biodiversity

• Urbanization

• Greater biodiversity

• Deforestation

Tags

NGSS.MS-LS2-5

Which term describes a nonnative species that spreads widely in a community, causing negative impacts on native species?

• Indicator species

• Endemic species

• Invasive species

• Keystone species

Tags

NGSS.MS-LS2-5

What does the term "endemic species" refer to?

• Species that live in a limited area

• Species introduced by humans

• Species found naturally in an ecosystem

• Species that are crucial to an ecosystem's health

Why are indicator species important?

• They introduce stability to ecosystems

• They provide information on the overall condition of the ecosystem

• They cause loss of habitats

• They have a wide-ranging impact on a community

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What is an indicator species?

• A species at serious risk of extinction

• A species that spreads widely in a community

• A species that has a wide-ranging impact on a community

• A species whose status provides information on the overall condition of the ecosystem

What is biodiversity?

• The loss of organisms in an area

• The introduction of invasive species

• The variety of organisms in an area

• The stability of ecosystems

Tags

NGSS.MS-LS2-5

Which type of species is a keystone species?

• A species at serious risk of extinction

• A species that spreads widely in a community

• A species that has a wide-ranging impact on a community

• A species that is found in an ecosystem by natural processes

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

What is the primary cause of loss of habitats and threat to biodiversity?

• Introduction of invasive species

• Urbanization

• Deforestation

• Native species

Tags

NGSS.MS-ESS3-4

NGSS.MS-LS2-5