Question 1

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) A) and B)
G) A) and E)

Question 2

Why is deforestation often associated with extreme floods and mud slides?

Accepted Answer

A)  Increased rain fall
B)  Increased transpiration
C)  Decreased nutrient absorption
D)  Increased soil erosion
E)  Decreased rain fallF) None of the above
G) D) and E)

Question 3

The zebra mussel and the gypsy moth are native species of North America.

Accepted Answer

A) True 
 B)False

Question 4

The "background" species extinction rate:

Accepted Answer

A)  Estimates how quickly species disappeared before human intervention
B)  Measures today's extinction rate of plants
C)  Measures today's extinction rate of animals
D)  Estimates of how many extinctions humans are causing
E)  All are correctF) A) and D)
G) A) and E)

Question 5

A 2004 study in the journal Nature concluded "Many plant and animal species are unlikely to survive climate change.New analyses suggest that 15-37% of a sample of 1,103 land plants and animals would eventually become extinct as a result of climate changes expected by 2050.For some of these species there will no longer be anywhere suitable to live." How would the extinction of plant species lead to the extinction of animal species?

Accepted Answer

A)  Animals need plants for pollination
B)  Plants consume carbon dioxide
C)  Plants perform transpiration
D)  Plants are the energy base of an ecosystem
E)  Plants prevent soil erosionF) A) and B)
G) A) and C)

Question 6

A cloud forest is typically a __________ biome.

Accepted Answer

A)  Warm, wet
B)  Cool, dry
C)  Cool, wet
D)  Warm, dry
E)  Hot, wetF) C) and D)
G) A) and E)

Question 7

Besides habitat destruction,desertification and eutrophication are the two most important threats to biodiversity.

Accepted Answer

A) True 
 B)False

Question 8

The ozone layer is part of the:

Accepted Answer

A)  Ionosphere
B)  Stratosphere
C)  Troposphere
D)  Biosphere
E)  Limnetic zoneF) C) and D)
G) D) and E)

Question 9

The ozone layer absorbs much of the harmful UV wavelengths of light that would otherwise reach Earth.

Accepted Answer

A) True 
 B)False

Question 10

Amphibians have which characteristics in common?

Accepted Answer

A)  Require fresh water to reproduce and can breathe through their skin
B)  Reproduce on land and can breathe through their skin
C)  Require fresh water to reproduce and must breathe through their lungs
D)  Reproduce on land and must breathe through their lungsE) A) and B)
F) B) and C)

Question 11

How did climate change affect frog mortality?

Accepted Answer

A)  The chytrid fungus had optimal growth temperatures with cooler days and warmer nights.
B)  The frogs could not survive the cooler temperatures during the day.
C)  The frogs could not survive the warmer temperatures at night.
D)  The chytrid fungus had optimal growth temperatures with warmer days and cooler nights.
E)  The frogs immune systems were suppressed by pollutants, making them more susceptible to infection by chytrid.F) None of the above
G) A) and E)

Question 12

Any chemical,physical,or biological change in the environment that harms living organisms is:

Accepted Answer

A)  Nitrification
B)  An "upwelling"
C)  Deforestation
D)  Ozone depletion
E)  PollutionF) A) and C)
G) All of the above

Exam 39: Conserving Biodiversity

The ozone layer is part of the:

Correct Answer
verified

The ozone layer absorbs much of the harmful UV wavelengths of light that would otherwise reach Earth.

Correct Answer
verified

Besides habitat destruction,desertification and eutrophication are the two most important threats to biodiversity.

Correct Answer
verified

A cloud forest is typically a __________ biome.

Correct Answer
verified

The "background" species extinction rate:

Correct Answer
verified

Amphibians have which characteristics in common?

Correct Answer
verified

The zebra mussel and the gypsy moth are native species of North America.

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

How did climate change affect frog mortality?

Correct Answer
verified

Why is deforestation often associated with extreme floods and mud slides?

Correct Answer
verified

Correct Answer
verified

Any chemical,physical,or biological change in the environment that harms living organisms is:

Correct Answer
verified

Exam 39: Conserving Biodiversity

The ozone layer is part of the:

Correct AnswerverifiedShow Answer

The ozone layer absorbs much of the harmful UV wavelengths of light that would otherwise reach Earth.

Correct AnswerverifiedShow Answer

Besides habitat destruction,desertification and eutrophication are the two most important threats to biodiversity.

Correct AnswerverifiedShow Answer

A cloud forest is typically a __________ biome.

Correct AnswerverifiedShow Answer

The "background" species extinction rate:

Correct AnswerverifiedShow Answer

Amphibians have which characteristics in common?

Correct AnswerverifiedShow Answer

The zebra mussel and the gypsy moth are native species of North America.

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

How did climate change affect frog mortality?

Correct AnswerverifiedShow Answer

Why is deforestation often associated with extreme floods and mud slides?

Correct AnswerverifiedShow Answer

Correct AnswerverifiedShow Answer

Any chemical,physical,or biological change in the environment that harms living organisms is:

Correct AnswerverifiedShow Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
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Correct Answer
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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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