Question 1

A species that humans bring to an area where it did not previously occur is a(n) _____ species.

Accepted Answer

A)   exotic
B)   native
C)   endemic
D)   existing
E)   endangeredF) C) and D)
G) D) and E)

Question 2

Commercial fisheries are increasingly focusing on catching smaller fish like anchovies because of ______ large predatory fishes.

Accepted Answer

A)   exotic
B)   competition with
C)   increases in
D)   pollution in
E)   overexploitation ofF) C) and E)
G) All of the above

Question 3

Which of the following is an important invasive species?

Accepted Answer

A)   Sumatran rhino
B)   California condor
C)   zebra mussel
D)   Northern bluefin tuna
E)   green pitcher plantF) A) and C)
G) B) and E)

Question 4

Which species is overexploited rather than invasive?

Accepted Answer

A)   zebra mussels in the Great Lakes
B)   brown tree snakes of Guam
C)   bison in the North American plains
D)   marine toads in Florida
E)   gypsy moth caterpillars in North AmericaF) C) and D)
G) B) and D)

Question 5

Fish ladders can help fish populations deal with obstructions created by dams.

Accepted Answer

A) True 
 B)False

Question 6

If your UV detector showed higher levels of UV radiation than normal,you might suspect changes in what layer of the atmosphere?

Accepted Answer

A)   benthic zone
B)   ozone layer
C)   cumulus clouds
D)   particulate layer
E)   profundal zoneF) C) and D)
G) A) and E)

Question 7

The zebra mussel and the gypsy moth both have reduced biodiversity in North America.

Accepted Answer

A) True 
 B)False

Question 8

One important conservation tool used to restore native populations is to set aside an area and protect it from overexploitation,invasive species,and habitat destruction.

Accepted Answer

A) True 
 B)False

Question 9

Why do populations that fragment in response to climate changes face a higher risk of extinction?

Accepted Answer

A)   Population fragmentation leads to loss of genetic diversity.
B)   Populations which have moved are subject to new predators.
C)   Moving populations cannot breed as effectively.
D)   The number of young decreases for several generations in new habitat.
E)   All of the answer choices are correct.F) None of the above
G) A) and D)

Question 10

Alpine chipmunks have moved to higher elevations in the last century as temperatures at Yellowstone warmed.

Accepted Answer

A) True 
 B)False

Question 11

The primary cause for loss of biodiversity is

Accepted Answer

A)   predation.
B)   parasitism.
C)   genetic mutation.
D)   habitat destruction.
E)   global warming.F) A) and D)
G) A) and C)

Question 12

An increase in the surface temperature of the earth caused by heat-trapping gases in the atmosphere is known as

Accepted Answer

A)   the greenhouse effect.
B)   the biome effect.
C)   bioremediation.
D)   desertification.
E)   the nursery effect.F) D) and E)
G) B) and E)

Question 13

To be considered _____,an introduced species must begin breeding in its new location and spread widely from its point of introduction.

Accepted Answer

A)   resourceful
B)   harmful
C)   native
D)   dominant
E)   invasiveF) B) and E)
G) A) and E)

Question 14

Many environmentalists believe that reducing human population growth could improve environmental issues.

Accepted Answer

A) True 
 B)False

Question 15

Greenhouse gases block

Accepted Answer

A)   carbon dioxide escape from the earth.
B)   heat escape from the earth.
C)   oxygen escape from the earth.
D)   UV wavelengths escape from the earth.
E)   UV wavelengths from reaching earth's surface.F) A) and D)
G) All of the above

Question 16

How does damming or altering the path of a river destroy wetlands?

Accepted Answer

A)   Fish can no longer migrate up and down the river.
B)   Wetlands can no longer obtain nutrients from annual floods.
C)   Wetlands can no longer obtain oxygen from the flowing water of the river.
D)   Birds can no longer get to the wetlands.
E)   Increased nutrients flow into the wetlands, causing eutrophication.F) A) and B)
G) A) and E)

Exam 40: Preserving Biodiversity

Which of the following is an important invasive species?

Correct Answer
verified

Commercial fisheries are increasingly focusing on catching smaller fish like anchovies because of ______ large predatory fishes.

Correct Answer
verified

Which species is overexploited rather than invasive?

Correct Answer
verified

How does damming or altering the path of a river destroy wetlands?

Correct Answer
verified

Greenhouse gases block

Correct Answer
verified

To be considered _____,an introduced species must begin breeding in its new location and spread widely from its point of introduction.

Correct Answer
verified

One important conservation tool used to restore native populations is to set aside an area and protect it from overexploitation,invasive species,and habitat destruction.

Correct Answer
verified

Why do populations that fragment in response to climate changes face a higher risk of extinction?

Correct Answer
verified

Alpine chipmunks have moved to higher elevations in the last century as temperatures at Yellowstone warmed.

Correct Answer
verified

An increase in the surface temperature of the earth caused by heat-trapping gases in the atmosphere is known as

Correct Answer
verified

If your UV detector showed higher levels of UV radiation than normal,you might suspect changes in what layer of the atmosphere?

Correct Answer
verified

Fish ladders can help fish populations deal with obstructions created by dams.

Correct Answer
verified

The primary cause for loss of biodiversity is

Correct Answer
verified

The zebra mussel and the gypsy moth both have reduced biodiversity in North America.

Correct Answer
verified

A species that humans bring to an area where it did not previously occur is a(n) _____ species.

Correct Answer
verified

Many environmentalists believe that reducing human population growth could improve environmental issues.

Correct Answer
verified

Exam 40: Preserving Biodiversity

Which of the following is an important invasive species?

Correct AnswerverifiedShow Answer

Commercial fisheries are increasingly focusing on catching smaller fish like anchovies because of ______ large predatory fishes.

Correct AnswerverifiedShow Answer

Which species is overexploited rather than invasive?

Correct AnswerverifiedShow Answer

How does damming or altering the path of a river destroy wetlands?

Correct AnswerverifiedShow Answer

Greenhouse gases block

Correct AnswerverifiedShow Answer

To be considered _____,an introduced species must begin breeding in its new location and spread widely from its point of introduction.

Correct AnswerverifiedShow Answer

One important conservation tool used to restore native populations is to set aside an area and protect it from overexploitation,invasive species,and habitat destruction.

Correct AnswerverifiedShow Answer

Why do populations that fragment in response to climate changes face a higher risk of extinction?

Correct AnswerverifiedShow Answer

Alpine chipmunks have moved to higher elevations in the last century as temperatures at Yellowstone warmed.

Correct AnswerverifiedShow Answer

An increase in the surface temperature of the earth caused by heat-trapping gases in the atmosphere is known as

Correct AnswerverifiedShow Answer

If your UV detector showed higher levels of UV radiation than normal,you might suspect changes in what layer of the atmosphere?

Correct AnswerverifiedShow Answer

Fish ladders can help fish populations deal with obstructions created by dams.

Correct AnswerverifiedShow Answer

The primary cause for loss of biodiversity is

Correct AnswerverifiedShow Answer

The zebra mussel and the gypsy moth both have reduced biodiversity in North America.

Correct AnswerverifiedShow Answer

A species that humans bring to an area where it did not previously occur is a(n) _____ species.

Correct AnswerverifiedShow Answer

Many environmentalists believe that reducing human population growth could improve environmental issues.

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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Correct Answer
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