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6.4.3. Biodiversity at Risk

6.4.3. Biodiversity at Risk

Assessment

Presentation

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Science

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11th - 12th Grade

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Practice Problem

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Medium

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NGSS
HS-LS4-5, HS-LS2-7, MS-LS2-5

+4

Standards-aligned

Created by

LaToya Washington

Used 9+ times

FREE Resource

21 Slides • 18 Questions

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6.4.3. Biodiversity at Risk

by LaToya Washington

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Multiple Choice

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The current rate of species extinction is

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slower than at any other time in this century.

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attributable to the actions of humans.

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the result of natural environmental processes

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of little consequence to Earth’s long-term survival.

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Multiple Choice

According to biologists, what percentage of species have become or are expected to become extinct between 1900 and 2100?

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1%

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10%

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25%

4

60%

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Multiple Choice

What groups of organisms are most in danger of extinction?

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those with small populations

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those that migrate or need special habitats

3

those with large populations that breed quickly

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Both those with small populations and those that migrate or need special habitats

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Multiple Choice

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An endangered species is

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a species in danger of extinction.

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a species growing on public land.

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an organism brought to a place where it has not lived before.

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a species that has disappeared entirely.

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Fill in the Blank

Any species with a declining population that could become endangered is a(n) _________________ species.

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Multiple Choice

What percentage of extinctions are caused by habitat loss?

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10%

2

50%

3

75%

4

100%

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Multiple Choice

What is another name for exotic species?

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indigenous species

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native

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endemic species

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non-native species

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Multiple Choice

Why are exotic species harmful to native species?

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Native species have no natural defense against them.

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Exotic species might compete for the same resources.

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Exotic species might carry diseases that in which the local species is susceptible.

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All of these are reasons why exotic species are harmful.

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Multiple Choice

The major human causes of extinction today are

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hunting and destroying habitats.

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polluting and introducing non-native species

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Both hunting & destroying habitats AND polluting & introducing non-native species

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Neither hunting & destroying habitats AND polluting & introducing non-native species

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Fill in the Blank

The passenger pigeon is an example of a bird that was once abundant in the United States but is now ____________________.

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Fill in the Blank

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The illegal hunting and slaughter of African elephants for their ivory tusks is also known as ____________________.

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Multiple Choice

Which of the following is NOT synonymous with endemic species?

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exotic species

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indigenous species

3

native species

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Multiple Choice

What percentage of coral reefs are threatened by human activity?

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20%

2

40%

3

60%

4

80%

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Multiple Choice

Which of the following is NOT one of the ways in which coral reefs are threatened by human activities?

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development along waterways

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creation of artificial reefs

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overharvesting of fish

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pollution

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Multiple Select

Select the four reasons why coral reefs are beneficial to humans.

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tourism revenue

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sources of new chemicals

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provide millions of people with food

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source of energy

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coastal protection

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Fill in the Blank

Honeycreepers found in the Hawaiian Islands are an example of a(n) ____________________ species.

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Fill in the Blank

The Amazon rain forest is an example of a habitat with a high species variability known as a(n) biodiversity _____________________.

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Multiple Choice

Where are many critical biodiversity hotspots located?

1

cities and developed areas of the world

2

islands, tropical rain forests, and coastal areas

3

desert and polar environments

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6.4.3. Biodiversity at Risk

by LaToya Washington

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