Question 1

Which of the following is the main reason that species go extinct?

Accepted Answer

A)   hunting.
B)   farming.
C)   insecticides such as DDT.
D)   habitat destruction.
E)   scientific collecting.F) B) and D)
G) A) and B)

Question 2

Natural ecosystems are able to break down dead organic material and recycle their nutrients.

Accepted Answer

A) True 
 B)False

Question 3

Ecosystems are based on complex interactions between communities. What are possible consequences from a disruption of these interactions?

Accepted Answer

A)   increases in pollution
B)   increases in biodiversity
C)   increases in extinctions
D)   decreases in pollution
E)   decreases in extinctionsF) A) and B)
G) B) and C)

Question 4

An example of ecotourism would include

Accepted Answer

A)   charging an airport tax to compensate for the pollution from jetliners.
B)   vacationing to hike or watch birds in a natural outdoor environment.
C)   volunteering to conduct ecological research at a university.
D)   keeping an organic garden in your backyard.
E)   planting trees on a vacant city lot.F) C) and D)
G) B) and C)

Question 5

Which of the following is a disadvantage to the use of fossil fuels?

Accepted Answer

A)   contribution to the greenhouse gases
B)   excessive pollution
C)   nonrenewable resource
D)   increased methane production
E)   All of the answer choices describe disadvantages associated with fossil fuels.F) C) and D)
G) None of the above

Question 6

Which of the following statement(s)  is/are correct concerning the indirect values of biodiversity?

Accepted Answer

A)   Trees affect the climate and provide shade and cooling during the summer.
B)   Trees can maintain rainfall to help prevent dry periods.
C)   Diverse organisms are critical in breaking down wastes and immobilizing pollutants.
D)   Erosion can lead to critical imbalances in an ecosystem.
E)   All of the answer choices are accurate statements about the indirect value of biodiversity.F) A) and E)
G) A) and D)

Question 7

The depletion of the world's fisheries is most likely due to which of the following?

Accepted Answer

A)   sport fishing
B)   commercial large-scale fishing
C)   discharge of sewage and garbage from cruise ships
D)   natural climate shifts
E)   natural extinction of fish populationF) D) and E)
G) A) and B)

Question 8

The loss of a keystone species would lead to

Accepted Answer

A)   a great number of secondary extinctions.
B)   an increase in species diversity within the community.
C)   an increase in the population of other keystone species.
D)   immediate collapse of the community.
E)   no noticeable change in the biodiversity of the community.F) A) and D)
G) A) and C)

Question 9

During summer months, many highly populated communities are placed under water restrictions. During this time, people are not allowed to wash their cars or water their lawns. The reason for this would probably be

Accepted Answer

A)   low levels of water in underground aquifers.
B)   the need to divert water to nearby farms.
C)   high costs of pumping water from other cities.
D)   excessive rainfall leading to nearby rivers being at flood stage.
E)   restrictions of pollutants draining into local water supplies.F) B) and D)
G) None of the above

Question 10

Which service provided by the natural biodiversity of an ecosystem is unable to be duplicated by human technology?

Accepted Answer

A)   biogeochemical cycles
B)   waste disposal
C)   provision of fresh water
D)   prevention of soil erosion
E)   flood preventionF) B) and E)
G) B) and D)

Question 11

Which species can be used to help motivate the public to conserve biodiversity?

Accepted Answer

A)   giant pandas
B)   lions
C)   tigers
D)   dolphins
E)   All of the answer choices are correct.F) A) and E)
G) A) and C)

Question 12

Farmland loses its productivity as a result of lost topsoil. Which of the following prevents loss of topsoil?

Accepted Answer

A)   contour farming
B)   terrace farming
C)   natural fences
D)   cover crops
E)   All of the answer choices describe farming methods that reduce the loss of topsoil.F) B) and D)
G) A) and B)

Question 13

Which of the following is true about extinction?

Accepted Answer

A)   Overexploitation by hunting and fishing is the foremost threat to tropical animals and plants.
B)   Without human activity, all species would survive and there would be no extinctions.
C)   There are many causes of extinctions and an animal or plant may go extinct for any of a combination of these factors.
D)   Commercial hunting and fishing are careful not to deplete animal reserves.
E)   Introduction of new alien species helps preserve biodiversity and slow extinction.F) B) and D)
G) None of the above

Question 14

Modern farming methods have resulted in

Accepted Answer

A)   an increase in the overall food supply.
B)   heavy use of fertilizers, pesticides, and herbicides.
C)   excessive fuel consumption.
D)   planting of fewer genetic varieties of plants.
E)   All of the answer choices describe modern farming methods.F) B) and C)
G) C) and D)

Question 15

Which of the following is a renewable energy source?

Accepted Answer

A)   coal
B)   oil
C)   hydropower
D)   natural gas
E)   fossil fuelsF) A) and B)
G) B) and E)

Question 16

Rosy periwinkle, the nine-banded armadillo, and some species of fungus and bacteria have

Accepted Answer

A)   agricultural value.
B)   medicinal value.
C)   consumptive use value.
D)   indirect value.
E)   no value.F) All of the above
G) C) and D)

Question 17

Restoration ecology

Accepted Answer

A)   seeks to design reserves that allow minimum impact on the species in the reserve.
B)   seeks to return a damaged ecosystem to its natural functioning state.
C)   seeks to use breeding programs in zoos to return extinct species to the wild.
D)   seeks to import exotic species into specific areas.
E)   seeks to encourage sustainable human development.F) B) and D)
G) A) and C)

Question 18

Underground water that is heated by radioactive decay and used to produce steam for home heating or hot water use is known as

Accepted Answer

A)   hydropower.
B)   wind power.
C)   fossil fuel power.
D)   geothermal energy.
E)   solar energy.F) A) and B)
G) A) and C)

Question 19

What kind of diversity is dependent on the interactions between species and their abiotic environment in a particular area?

Accepted Answer

A)   species diversity
B)   genetic diversity
C)   ecosystem diversity
D)   landscape diversity
E)   conservation diversityF) D) and E)
G) A) and E)

Question 20

Which of the following is a goal when restoring an ecosystem?

Accepted Answer

A)   to create a sustainable ecosystem that will continue to function after restoration is complete
B)   to use the wildlife and seeds from fragments of the original ecosystem to restore the original ecosystem
C)   to begin restoration as soon as possible to salvage existing fragments of the habitat
D)   to create a sustainable ecosystem that will provide services to humans
E)   All of the answer choices describe goals of restoration ecology.F) B) and D)
G) B) and E)

Exam 37: Conservation Biology

Which service provided by the natural biodiversity of an ecosystem is unable to be duplicated by human technology?

Correct AnswerverifiedShow Answer

During summer months, many highly populated communities are placed under water restrictions. During this time, people are not allowed to wash their cars or water their lawns. The reason for this would probably be

Correct AnswerverifiedShow Answer

Underground water that is heated by radioactive decay and used to produce steam for home heating or hot water use is known as

Correct AnswerverifiedShow Answer

Which of the following statement(s) is/are correct concerning the indirect values of biodiversity?

Correct AnswerverifiedShow Answer

Which of the following is a disadvantage to the use of fossil fuels?

Correct AnswerverifiedShow Answer

Which species can be used to help motivate the public to conserve biodiversity?

Correct AnswerverifiedShow Answer

Which of the following is a renewable energy source?

Correct AnswerverifiedShow Answer

Which of the following is a goal when restoring an ecosystem?

Correct AnswerverifiedShow Answer

An example of ecotourism would include

Correct AnswerverifiedShow Answer

Rosy periwinkle, the nine-banded armadillo, and some species of fungus and bacteria have

Correct AnswerverifiedShow Answer

Natural ecosystems are able to break down dead organic material and recycle their nutrients.

Correct AnswerverifiedShow Answer

Which of the following is true about extinction?

Correct AnswerverifiedShow Answer

Restoration ecology

Correct AnswerverifiedShow Answer

Modern farming methods have resulted in

Correct AnswerverifiedShow Answer

The depletion of the world's fisheries is most likely due to which of the following?

Correct AnswerverifiedShow Answer

Which of the following is the main reason that species go extinct?

Correct AnswerverifiedShow Answer

Ecosystems are based on complex interactions between communities. What are possible consequences from a disruption of these interactions?

Correct AnswerverifiedShow Answer

Farmland loses its productivity as a result of lost topsoil. Which of the following prevents loss of topsoil?

Correct AnswerverifiedShow Answer

The loss of a keystone species would lead to

Correct AnswerverifiedShow Answer

What kind of diversity is dependent on the interactions between species and their abiotic environment in a particular area?

Correct AnswerverifiedShow Answer

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