CP Exploring Biodiversity and Ecosystems

What is biodiversity?

• The variety of life in a particular habitat or ecosystem

• The number of species that have gone extinct

• The introduction of non-native species to an ecosystem

• The process of species evolving over time

Tags

NGSS.MS-LS2-5

Why is biodiversity important for ecosystems?

• It increases the number of predators

• It helps maintain ecosystem balance and resilience

• It reduces the number of plant species

• It causes more species to become extinct

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NGSS.MS-LS2-2

What is a keystone species?

• A species that is the largest in an ecosystem

• A species that has a disproportionately large effect on its environment

• A species that is always at the top of the food chain

• A species that is the most numerous in an ecosystem

Which of the following is a characteristic of a keystone species?

• It is always a predator

• It plays a critical role in maintaining the structure of an ecosystem

• It is the most colorful species in an ecosystem

• It is always a plant

Tags

NGSS.MS-LS2-4

What is extinction?

• The process by which a species becomes more numerous

• The complete disappearance of a species from Earth

• The introduction of a new species to an ecosystem

• The adaptation of a species to a new environment

Tags

NGSS.MS-LS4-1

Which of the following is a cause of extinction?

• Increased biodiversity

• Habitat destruction

• Introduction of native species

• Balanced ecosystems

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

What are invasive species?

• Species that are native to an ecosystem

• Non-native species that cause harm to the environment

• Species that are beneficial to an ecosystem

• Species that are endangered

Tags

NGSS.MS-LS2-2

What is one effect of invasive species on ecosystems?

• They increase the native species population

• They often outcompete native species for resources

• They always improve the ecosystem's health

• They decrease biodiversity

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

What is a conservation strategy?

• A plan to increase the number of invasive species

• A method to protect and preserve biodiversity

• A way to ensure the extinction of certain species

• A technique to reduce the number of keystone species

Tags

NGSS.MS-LS2-5

Which of the following is a conservation strategy?

• Destroying natural habitats

• Protecting endangered species through legal measures

• Introducing invasive species to new areas

• Reducing the number of keystone species

Tags

NGSS.MS-LS2-5