Question 1

In spite of hundreds of millions of dollars spent on insecticides targeted at pest control for agricultural and medical purposes, man has been unable to drive any to extinction. On the other hand, the extinction of many species of birds, fishes, plants, and insects species have occurred as a result of

Accepted Answer

A)   hunting.
B)   farming.
C)   disease.
D)   habitat destruction.
E)   scientific collecting.F) B) and C)
G) B) and E)

Question 2

Sustainable development is a pattern of resource use that attempts to preserve the environment while meeting the needs of humans in the present and future.

Accepted Answer

A) True 
 B)False

Question 3

The use of wheat, corn, rice and other crops derived from wild ancestors is an example of the _______ value of biodiversity.

Accepted Answer

A)   agricultural
B)   medicinal
C)   consumptive use
D)   climatic regulationE) A) and D)
F) B) and C)

Question 4

What is the primary goal of conservation biology?

Accepted Answer

A)   Management of the Earth's biodiversity.
B)   Discovery of new sources of food and medicines.
C)   Preservation of crucial habitat for the benefit of multiple species.
D)   Balance the needs of the human population against the rest of the species on Earth.
E)   Identify the most endangered and threatened species so efforts can be made to protect them.F) C) and E)
G) D) and E)

Question 5

_______ is (are)  associated with 85% of the cases of threatened and endangered species.

Accepted Answer

A)   Pollution
B)   Habitat loss
C)   Overexploitation
D)   Disease
E)   Exotic speciesF) B) and D)
G) B) and E)

Question 6

During habitat preservation landscape preservation is often intended for one particular organism but may benefit others.

Accepted Answer

A) True 
 B)False

Question 7

Which of the following are characteristics of a keystone species?

Accepted Answer

A)   They influence the diversity of the community.
B)   They evoke an emotional response in people.
C)   They have a very large population.
D)   They are always mammals.
E)   None of these are characteristics of keystone species.F) D) and E)
G) A) and D)

Question 8

Describe the sequence of problems associated with tropical rainforest destruction.

Accepted Answer

Settlement in the rainforests are usuall...

Question 9

Biodiversity is described in terms of genetic, community, and landscape diversity.

Accepted Answer

A) True 
 B)False  True

Question 10

Which of the following preservation tactics would have the greatest impact on saving the largest number of species?

Accepted Answer

A)   Preserve a large tract of land that contains source populations of keystone species.
B)   Preserve several small tracts of land that contain source populations of keystone species.
C)   Preserve a large tract of land that contains sink populations of keystone species.
D)   Preserve a large tract of land that contains source populations of flagship species.
E)   Preserve multiple small tracts of land that each contain source populations of keystone species.F) A) and E)
G) B) and C)

Question 11

In which of these landscape patches are species most subject to the edge effect. Explain your answer.

Accepted Answer

The species living in the smallest patch are most subject to the edge effect. As the patches decrease in size, there is an increasing percentage of patch influenced by edge effects. Less of the area remains the typical, favorable, and effective habitat as a greater percentage of the habitat becomes slightly different from the interior of the patch.

Question 12

What is the main reason for the changes that are occurring in the Earth's climate?

Accepted Answer

A)   Large scale deforestation
B)   Disruption of the waste recycling by decomposers
C)   Over harvesting of wild species for consumptive value
D)   Drainage of wetlands producing a disruption of water purification
E)   An increase in soil erosion leading to siltation of rivers and estuariesF) B) and D)
G) B) and C)

Question 13

Biodiversity is a resource of immense value. All of the following are ways in which biodiversity is directly valuable to humans EXCEPT

Accepted Answer

A)   agricultural.
B)   medicinal.
C)   consumptive use.
D)   contributions to biogeochemical cycles.E) A) and D)
F) B) and D)

Question 14

If all of the endangered plant and animal species in the United States were to go extinct the Earth's biodiversity would decrease by _________.

Accepted Answer

A)   approximately .007%
B)   approximately 2.3%
C)   approximately 10%
D)   approximately 3.4%
E)   approximately 16.2%F) B) and C)
G) B) and D)

Question 15

The science of collecting, analyzing, and making readily available biological information is

Accepted Answer

A)   habitat restoration planning.
B)   landscape preservation.
C)   bioinformatics.
D)   a population viability analysis.E) B) and C)
F) B) and D)

Question 16

Identify the 5 main human influenced causes of extinction, starting with the cause with the greatest impact and moving towards the lowest impact.

Accepted Answer

Greatest impact- habitat loss
exotic species
pollution
overexploitation
Least impact - disease

Question 17

Which value of biodiversity in an ecosystem will benefit endangered species the most?

Accepted Answer

A)   consumptive value
B)   medicinal value
C)   ecotourism
D)   agricultural value
E)   regulation of climateF) C) and D)
G) A) and E)

Question 18

Madagascar is considered a biodiversity "hotspot" because

Accepted Answer

A)   it originated as a volcanic island.
B)   it has lost nearly all of its native species to extinction.
C)   it contains an unusually high concentration of species.
D)   it has resisted habitat destruction that has caused extinctions elsewhere.
E)   All of the choices are correct.F) A) and E)
G) B) and C)

Question 19

Which of the following species is both a keystone species and a flagship species?

Accepted Answer

A)   grizzly bear
B)   panda
C)   beaver
D)   dolphin
E)   alligatorF) C) and E)
G) A) and E)

Question 20

Which of the following is not a human induced cause of extinction?

Accepted Answer

A)   exotic species
B)   habitat loss
C)   eutrophication
D)   ozone depletion
E)   outcompeted by another species in the same ecosystemF) A) and B)
G) A) and C)

Exam 47: Conservation of Biodiversity

Correct Answer
verified

Sustainable development is a pattern of resource use that attempts to preserve the environment while meeting the needs of humans in the present and future.

Correct Answer
verified

The use of wheat, corn, rice and other crops derived from wild ancestors is an example of the _______ value of biodiversity.

Correct Answer
verified

What is the primary goal of conservation biology?

Correct Answer
verified

_______ is (are) associated with 85% of the cases of threatened and endangered species.

Correct Answer
verified

During habitat preservation landscape preservation is often intended for one particular organism but may benefit others.

Correct Answer
verified

Which of the following are characteristics of a keystone species?

Correct Answer
verified

Describe the sequence of problems associated with tropical rainforest destruction.

Correct Answer
verified
Settlement in the rainforests are usuall...
View Answer

Biodiversity is described in terms of genetic, community, and landscape diversity.

Correct Answer
verified
True

Which of the following preservation tactics would have the greatest impact on saving the largest number of species?

Correct Answer
verified

In which of these landscape patches are species most subject to the edge effect. Explain your answer.

What is the main reason for the changes that are occurring in the Earth's climate?

Correct Answer
verified

Biodiversity is a resource of immense value. All of the following are ways in which biodiversity is directly valuable to humans EXCEPT

Correct Answer
verified

If all of the endangered plant and animal species in the United States were to go extinct the Earth's biodiversity would decrease by _________.

Correct Answer
verified

The science of collecting, analyzing, and making readily available biological information is

Correct Answer
verified

Identify the 5 main human influenced causes of extinction, starting with the cause with the greatest impact and moving towards the lowest impact.

Correct Answer
verified
Greatest impact- habitat loss exotic species pollution overexploitation Least impact - disease

Which value of biodiversity in an ecosystem will benefit endangered species the most?

Correct Answer
verified

Madagascar is considered a biodiversity "hotspot" because

Correct Answer
verified

Which of the following species is both a keystone species and a flagship species?

Correct Answer
verified

Which of the following is not a human induced cause of extinction?

Correct Answer
verified

Exam 47: Conservation of Biodiversity

Correct AnswerverifiedShow Answer

Sustainable development is a pattern of resource use that attempts to preserve the environment while meeting the needs of humans in the present and future.

Correct AnswerverifiedShow Answer

The use of wheat, corn, rice and other crops derived from wild ancestors is an example of the _______ value of biodiversity.

Correct AnswerverifiedShow Answer

What is the primary goal of conservation biology?

Correct AnswerverifiedShow Answer

_______ is (are) associated with 85% of the cases of threatened and endangered species.

Correct AnswerverifiedShow Answer

During habitat preservation landscape preservation is often intended for one particular organism but may benefit others.

Correct AnswerverifiedShow Answer

Which of the following are characteristics of a keystone species?

Correct AnswerverifiedShow Answer

Describe the sequence of problems associated with tropical rainforest destruction.

Correct AnswerverifiedSettlement in the rainforests are usuall...View AnswerShow Answer

Biodiversity is described in terms of genetic, community, and landscape diversity.

Correct AnswerverifiedTrue

Which of the following preservation tactics would have the greatest impact on saving the largest number of species?

Correct AnswerverifiedShow Answer

In which of these landscape patches are species most subject to the edge effect. Explain your answer.

What is the main reason for the changes that are occurring in the Earth's climate?

Correct AnswerverifiedShow Answer

Biodiversity is a resource of immense value. All of the following are ways in which biodiversity is directly valuable to humans EXCEPT

Correct AnswerverifiedShow Answer

If all of the endangered plant and animal species in the United States were to go extinct the Earth's biodiversity would decrease by _________.

Correct AnswerverifiedShow Answer

The science of collecting, analyzing, and making readily available biological information is

Correct AnswerverifiedShow Answer

Identify the 5 main human influenced causes of extinction, starting with the cause with the greatest impact and moving towards the lowest impact.

Correct AnswerverifiedGreatest impact- habitat loss exotic species pollution overexploitation Least impact - disease

Which value of biodiversity in an ecosystem will benefit endangered species the most?

Correct AnswerverifiedShow Answer

Madagascar is considered a biodiversity "hotspot" because

Correct AnswerverifiedShow Answer

Which of the following species is both a keystone species and a flagship species?

Correct AnswerverifiedShow Answer

Which of the following is not a human induced cause of extinction?

Correct AnswerverifiedShow Answer

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Settlement in the rainforests are usuall...
View Answer

Correct Answer
verified
True

Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
Greatest impact- habitat loss exotic species pollution overexploitation Least impact - disease

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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