Question 1

The fragmentation of natural habitats in the conversion of land for human uses creates

Accepted Answer

A) more opportunities to preserve wildlife in many small parks. 
B) focused regions where careful wildlife management can actually increase biodiversity. 
C) habitats that favor species that grow slowly or have naturally unstable populations. 
D) habitat breaks that favor species that thrive at the edges of ecosystems. 
A) more opportunities to preserve wildlife in many small parks. 
B) focused regions where careful wildlife management can actually increase biodiversity. 
C) habitats that favor species that grow slowly or have naturally unstable populations. 
D) habitat breaks that favor species that thrive at the edges of ecosystems.

Question 2

Protection of biodiversity around the world requires

Accepted Answer

A) basic science to guide public policies and laws that then must be enforced. 
B) changes to social structure and political organizations that drive basic science. 
C) new technologies and techniques that are still being developed. 
D) the introduction of new species into new regions to spread a species range. 
A) basic science to guide public policies and laws that then must be enforced. 
B) changes to social structure and political organizations that drive basic science. 
C) new technologies and techniques that are still being developed. 
D) the introduction of new species into new regions to spread a species range.

Question 3

Legal hunters in the United States

Accepted Answer

A) often object to limits on the number of prey they can kill and the times when they can hunt. 
B) pay hunting fees that help manage the populations of their prey. 
C) have opposed most laws that protect the very habitat where their prey survive. 
D) are mostly interested in the intrinsic value of their prey. 
A) often object to limits on the number of prey they can kill and the times when they can hunt. 
B) pay hunting fees that help manage the populations of their prey. 
C) have opposed most laws that protect the very habitat where their prey survive. 
D) are mostly interested in the intrinsic value of their prey.

Question 4

Almost all of the threats to biodiversity represented by the acronym HIPPO are related to the

Accepted Answer

A) overpopulation of the world by humans. 
B) overuse of pesticides and herbicides. 
C) introduction of exotic species to new parts of the world. 
D) reliance upon fossil fuels to power human societies. 
A) overpopulation of the world by humans. 
B) overuse of pesticides and herbicides. 
C) introduction of exotic species to new parts of the world. 
D) reliance upon fossil fuels to power human societies.

Question 5

The Critical Ecosystem Partnership Fund provides money to

Accepted Answer

A) governments to purchase land that contains endangered species. 
B) non-governmental agencies to protect biodiversity hot spots. 
C) international organizations to kill organisms that carry human disease vectors. 
D) the Defenders of Wildlife to replant trees in large burned areas of the rain forest to increase biodiversity. 
A) governments to purchase land that contains endangered species. 
B) non-governmental agencies to protect biodiversity hot spots. 
C) international organizations to kill organisms that carry human disease vectors. 
D) the Defenders of Wildlife to replant trees in large burned areas of the rain forest to increase biodiversity.

Question 6

Which one of the following statements best reflects the overall position of current science on the role of biodiversity in ecosystems?

Accepted Answer

A) The more species in an ecosystem,the greater the biomass production. 
B) The more species in an ecosystem,the greater its drought resistance. 
C) The effects of biodiversity loss on ecosystem function depend on how many and which species are lost. 
D) Every species in an ecosystem is essential to maintain the overall ecosystem. 
A) The more species in an ecosystem,the greater the biomass production. 
B) The more species in an ecosystem,the greater its drought resistance. 
C) The effects of biodiversity loss on ecosystem function depend on how many and which species are lost. 
D) Every species in an ecosystem is essential to maintain the overall ecosystem.

Question 7

Which of the following best represents a loss of biological wealth?

Accepted Answer

A) people fishing for catfish in a lake 
B) mining coal from deep underground mines 
C) the extinction of several beetle species 
D) a naturally occurring fire in a forest 
A) people fishing for catfish in a lake 
B) mining coal from deep underground mines 
C) the extinction of several beetle species 
D) a naturally occurring fire in a forest

Question 8

Plants that can best resist a variety of environmental challenges are most likely

Accepted Answer

A) domesticated plants with little genetic variation. 
B) cultivars with little genetic variation. 
C) wild plants with high degrees of variation. 
D) wild plants with low degrees of variation. 
A) domesticated plants with little genetic variation. 
B) cultivars with little genetic variation. 
C) wild plants with high degrees of variation. 
D) wild plants with low degrees of variation.

Question 9

Which one of the following is not a major source of invasive species in the world?

Accepted Answer

A) deliberate introductions with specific intentions 
B) accidental introductions as parasites or pathogens on commercial species 
C) escape from zoos and animal parks 
D) escape from commercial aquaculture enclosures 
A) deliberate introductions with specific intentions 
B) accidental introductions as parasites or pathogens on commercial species 
C) escape from zoos and animal parks 
D) escape from commercial aquaculture enclosures

Question 10

Ecosystem sustainability primarily results from the

Accepted Answer

A) relationships between the organisms in an ecosystem. 
B) number of predators found in the ecosystem. 
C) frequency of fires or other natural disasters in an ecosystem. 
D) total amount of biomass that exists in an ecosystem. 
A) relationships between the organisms in an ecosystem. 
B) number of predators found in the ecosystem. 
C) frequency of fires or other natural disasters in an ecosystem. 
D) total amount of biomass that exists in an ecosystem.

Question 11

The greatest threat to global biodiversity is

Accepted Answer

A) the introduction of alien species. 
B) habitat destruction. 
C) overconsumption of rice,corn,and wheat. 
D) chemical pollution. 
A) the introduction of alien species. 
B) habitat destruction. 
C) overconsumption of rice,corn,and wheat. 
D) chemical pollution.

Question 12

Off the northern Atlantic coast,cod populations were severely depleted by the 1990s.Biologists that successfully argued for fishing bans on cod to let the cod populations recover argued for the

Accepted Answer

A) aesthetic value of cod. 
B) institutional value of cod. 
C) intrinsic value of cod. 
D) instrumental value of cod. 
A) aesthetic value of cod. 
B) institutional value of cod. 
C) intrinsic value of cod. 
D) instrumental value of cod.

Question 13

A poacher kills polar bears in Alaska and ships their skins to buyers in Asia.The poacher is most likely in violation of laws that come from the

Accepted Answer

A) Endangered Species Coalition and the Animal Protection Institute. 
B) Endangered Species Act and CITES. 
C) National Wildlife Association and Audubon Society. 
D) World Wildlife Fund and the Alaska Wildlife Alliance. 
A) Endangered Species Coalition and the Animal Protection Institute. 
B) Endangered Species Act and CITES. 
C) National Wildlife Association and Audubon Society. 
D) World Wildlife Fund and the Alaska Wildlife Alliance.

Question 14

In the United States today,

Accepted Answer

A) some game animals are still being hunted to extinction. 
B) most people do not need permission or licenses to hunt common game animals. 
C) property owners do not own the wildlife on their lands. 
D) turkey populations are threatened with extinction due to overhunting. 
A) some game animals are still being hunted to extinction. 
B) most people do not need permission or licenses to hunt common game animals. 
C) property owners do not own the wildlife on their lands. 
D) turkey populations are threatened with extinction due to overhunting.

Question 15

The greatest potential for developing new types of agricultural crops depends upon

Accepted Answer

A) bioengineering new combinations of wheat and rice. 
B) grafting together different plants into one new type of plant,such as a plant with tomatoes and sweet potato roots. 
C) thousands of plant species that occur only in the wild. 
D) our ability to identify and culture new types of animal pollinators. 
A) bioengineering new combinations of wheat and rice. 
B) grafting together different plants into one new type of plant,such as a plant with tomatoes and sweet potato roots. 
C) thousands of plant species that occur only in the wild. 
D) our ability to identify and culture new types of animal pollinators.

Question 16

Although unusually high,extinction rates may be

Accepted Answer

A) declining because of overestimates of some groups in some ecosystems. 
B) declining because fewer species are becoming threatened worldwide. 
C) even higher because of the loss of tropical forests. 
D) even higher because of intense predation in many grassland ecosystems. 
A) declining because of overestimates of some groups in some ecosystems. 
B) declining because fewer species are becoming threatened worldwide. 
C) even higher because of the loss of tropical forests. 
D) even higher because of intense predation in many grassland ecosystems.

Question 17

If a subdivision is built by clearing several portions of a large wooded region,we might see an increase in the

Accepted Answer

A) number of jays or cowbirds in the region. 
B) number of songbirds in the region. 
C) biodiversity in the region. 
D) number of large-sized species with slower individual growth. 
A) number of jays or cowbirds in the region. 
B) number of songbirds in the region. 
C) biodiversity in the region. 
D) number of large-sized species with slower individual growth.

Question 18

The greatest number of known or yet to be discovered species are types of

Accepted Answer

A) animals. 
B) plants. 
C) fungi. 
D) mammals. 
A) animals. 
B) plants. 
C) fungi. 
D) mammals.

Question 19

Environmental pollution often decreases biodiversity by

Accepted Answer

A) dramatically changing abiotic factors in the environment. 
B) favoring invasive species in a region. 
C) spreading pathogenic microorganisms in natural environments. 
D) reducing the number of pathogens in a region. 
A) dramatically changing abiotic factors in the environment. 
B) favoring invasive species in a region. 
C) spreading pathogenic microorganisms in natural environments. 
D) reducing the number of pathogens in a region.

Question 20

In the southeastern United States,the red fire ant is

Accepted Answer

A) a natural predator that is a dominant species in forest ecosystems. 
B) an invasive species that has caused a decline in biodiversity. 
C) used to control invasive insect species that could potentially hurt agricultural crops. 
D) has increased songbird populations which use it as food. 
A) a natural predator that is a dominant species in forest ecosystems. 
B) an invasive species that has caused a decline in biodiversity. 
C) used to control invasive insect species that could potentially hurt agricultural crops. 
D) has increased songbird populations which use it as food.

Exam 6: Wild Species and Biodiversity

The fragmentation of natural habitats in the conversion of land for human uses creates

Protection of biodiversity around the world requires

Legal hunters in the United States

Almost all of the threats to biodiversity represented by the acronym HIPPO are related to the

The Critical Ecosystem Partnership Fund provides money to

Which one of the following statements best reflects the overall position of current science on the role of biodiversity in ecosystems?

Which of the following best represents a loss of biological wealth?

Plants that can best resist a variety of environmental challenges are most likely

Which one of the following is not a major source of invasive species in the world?

Ecosystem sustainability primarily results from the

The greatest threat to global biodiversity is

Off the northern Atlantic coast,cod populations were severely depleted by the 1990s.Biologists that successfully argued for fishing bans on cod to let the cod populations recover argued for the

A poacher kills polar bears in Alaska and ships their skins to buyers in Asia.The poacher is most likely in violation of laws that come from the

In the United States today,

The greatest potential for developing new types of agricultural crops depends upon

Although unusually high,extinction rates may be

If a subdivision is built by clearing several portions of a large wooded region,we might see an increase in the

The greatest number of known or yet to be discovered species are types of

Environmental pollution often decreases biodiversity by

In the southeastern United States,the red fire ant is

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