Question 1

The cancer drug Taxol, which originally came from the Pacific yew tree (Taxus brevifolia) , is an example of a _____ service.

Accepted Answer

A)   provisioning
B)   cultural
C)   supporting
D)   regulating

Question 2

Biotic _____ is the process by which unique species compositions originally found in different regions slowly become more similar as a result of the movement of people, cargo, and species.

Accepted Answer

A)   normalization
B)   confluence
C)   magnification
D)   homogenization

Question 3

In a food chain that undergoes biomagnification of a pesticide, which organism can be expected to have the highest pesticide concentration?

Accepted Answer

A)   algae
B)   carnivorous fish
C)   zooplankton
D)   herbivorous fish

Question 4

A minimum viable population is the _____ population of a species that can _____.

Accepted Answer

A)   smallest; persist in the face of environmental variation
B)   ideal; persist in increasing global temperatures
C)   smallest; maintain genetic variability
D)   ideal; return a population from threatened status

Question 5

The mass extinction that occurred 443 million years ago was caused by

Accepted Answer

A)   global warming.
B)   an asteroid.
C)   volcanism.
D)   an ice age.

Question 6

Drinking water is an example of a _____ service.

Accepted Answer

A)   cultural
B)   provisioning
C)   supporting
D)   regulating

Question 7

According to the IUCN (2017) , which group of species is the most threatened or near-threatened with the risk of future extinction globally?

Accepted Answer

A)   birds
B)   amphibians
C)   reptiles
D)   mammals

Question 8

The pesticide DDT in a body of water increases about _____ in concentration when it binds to particles such as algae.

Accepted Answer

A)   10-fold
B)   5-fold
C)   50-fold
D)   30-fold

Question 9

Tropical forests are being logged at a rate of _____ million hectares per year.

Accepted Answer

A)   20
B)   5
C)   50
D)   10

Question 10

The reintroduction of wolves to Yellowstone National Park has had effects beyond the conservation of wolves. What are other benefits of the reintroduction?

Accepted Answer

The reintroduction of wolves to Yellowst...

Question 11

An endemic species is one that

Accepted Answer

A)   has no intrinsic value.
B)   has no instrumental value.
C)   has a relatively restricted distribution.
D)   is found in all biogeographic regions yet is still endangered.

Question 12

You measure 1,000 mg of the pesticide DDT in the soil, and 30 days later the amount in the soil is 998.1 mg. What is the half-life (in years) of DDT in this soil?

Accepted Answer

To calculate the half-life of DDT in the...

Question 13

The goal in protecting a habitat is commonly the preservation of a large enough area to support a _____ population.

Accepted Answer

A)   maximum sustaining
B)   minimum sustaining
C)   maximum viable
D)   minimum viable

Question 14

Biodiversity hotspots throughout the world contain _____ percent of the world's plant species.

Accepted Answer

A)   75
B)   40
C)   80
D)   50

Question 15

Protecting habitat for buffalo and wildebeests is challenging because of all of the following except

Accepted Answer

A)   they have a very large range.
B)   they undergo large-scale movements.
C)   there may not be enough contiguous habitat to meet their requirements.
D)   they are prone to many parasitic diseases originating in their habitats.

Question 16

What is NOT an example of a regulating service?

Accepted Answer

A)   climate regulation
B)   nutrient cycling
C)   flood control
D)   water purification

Question 17

A review of research in Europe demonstrated that species richness is

Accepted Answer

A)   positively related to aboveground biomass.
B)   negatively related to aboveground biomass.
C)   positively related to genetic diversity.
D)   negatively related to genetic diversity.

Question 18

Instrumental values of biodiversity differ from intrinsic values of biodiversity in which ways?

Accepted Answer

A)   Society can place a clear dollar value on instrumental values.
B)   Society can place a clear dollar value on intrinsic values.
C)   Intrinsic values include those that allow ecosystems to exist.
D)   Instrumental values are those that are based (or not)  on one's belief system.

Question 19

What is the difference between instrumental and intrinsic values of biodiversity? Give examples for each.

Accepted Answer

The difference between instrumental and ...

Question 20

Cultural services are those that

Accepted Answer

A)   humans use, including lumber, fur, meat, crops, water, and fiber.
B)   allow ecosystems to exist, such as primary production, soil formation, and nutrient cycling.
C)   include climate regulation, flood control, and water purification.
D)   provide aesthetic, spiritual, or recreational value.

Exam 23: Global Conservation of Biodiversity

What is the difference between instrumental and intrinsic values of biodiversity? Give examples for each.

Correct AnswerAnswered by ExamLex AIThe difference between instrumental and ...View AnswerShow Answer

A review of research in Europe demonstrated that species richness is

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Protecting habitat for buffalo and wildebeests is challenging because of all of the following except

Correct AnswerverifiedShow Answer

A minimum viable population is the _____ population of a species that can _____.

Correct AnswerverifiedShow Answer

You measure 1,000 mg of the pesticide DDT in the soil, and 30 days later the amount in the soil is 998.1 mg. What is the half-life (in years) of DDT in this soil?

Correct AnswerAnswered by ExamLex AITo calculate the half-life of DDT in the...View AnswerShow Answer

What is NOT an example of a regulating service?

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The reintroduction of wolves to Yellowstone National Park has had effects beyond the conservation of wolves. What are other benefits of the reintroduction?

Correct AnswerAnswered by ExamLex AIThe reintroduction of wolves to Yellowst...View AnswerShow Answer

The mass extinction that occurred 443 million years ago was caused by

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Tropical forests are being logged at a rate of _____ million hectares per year.

Correct AnswerverifiedShow Answer

The goal in protecting a habitat is commonly the preservation of a large enough area to support a _____ population.

Correct AnswerverifiedShow Answer

Biodiversity hotspots throughout the world contain _____ percent of the world's plant species.

Correct AnswerverifiedShow Answer

Biotic _____ is the process by which unique species compositions originally found in different regions slowly become more similar as a result of the movement of people, cargo, and species.

Correct AnswerverifiedShow Answer

The pesticide DDT in a body of water increases about _____ in concentration when it binds to particles such as algae.

Correct AnswerverifiedShow Answer

Instrumental values of biodiversity differ from intrinsic values of biodiversity in which ways?

Correct AnswerverifiedShow Answer

Cultural services are those that

Correct AnswerverifiedShow Answer

Drinking water is an example of a _____ service.

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In a food chain that undergoes biomagnification of a pesticide, which organism can be expected to have the highest pesticide concentration?

Correct AnswerverifiedShow Answer

An endemic species is one that

Correct AnswerverifiedShow Answer

The cancer drug Taxol, which originally came from the Pacific yew tree (Taxus brevifolia) , is an example of a _____ service.

Correct AnswerverifiedShow Answer

According to the IUCN (2017) , which group of species is the most threatened or near-threatened with the risk of future extinction globally?

Correct AnswerverifiedShow Answer

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The difference between instrumental and ...
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A minimum viable population is the _ population of a species that can _.

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To calculate the half-life of DDT in the...
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The reintroduction of wolves to Yellowst...
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