Question 1

Why is the COI gene sequence unsuitable as a DNA barcode for plants?

Accepted Answer

A)   The gene has a much faster evolution rate in plants.
B)   The gene has a much slower evolution rate in plants.
C)   There are too many plant species.
D)   There are not enough plant species.
E)   It is too difficult to extract plant DNA.F) A) and B)
G) B) and C)

Question 2

According to Myers, a biodiversity hot spot must harbor at least ____.

Accepted Answer

A)   20 predator species
B)   100 endemic plant species
C)   15 extinct species
D)   1500 endemic plant species
E)   100 endangered speciesF) None of the above
G) C) and E)

Question 3

Conservation biology is a ____.

Accepted Answer

A)   mature science
B)   young science
C)   science that addresses speciation rates
D)   science practiced by environmentalists
E)   declining scienceF) D) and E)
G) B) and D)

Question 4

The number of species a patch will support depends on its ____ and ____.

Accepted Answer

A)   size; species richness
B)   size; habitat
C)   area; species richness
D)   size; proximity to larger patches
E)   habitat; proximity to larger patchesF) A) and E)
G) All of the above

Question 5

Scientists have found that the Bd infection ____.

Accepted Answer

A)   affects amphibians and fish
B)   enhances lymphocyte production
C)   may travel from low elevation to high elevation habitats
D)   may travel in streams that flow from high elevation to low elevation habitats
E)   cannot infect amphibians that never enter standing waterF) B) and E)
G) A) and B)

Question 6

By one estimation, the gross global ecosystem valuation is ____.

Accepted Answer

A)   equivalent to the total carbon dioxide processed by all ecosystems
B)   equivalent to the total amount of carbon fixed
C)   equivalent to the value of all goods produced on Earth
D)   greater than the value of all goods produced on Earth
E)   less than the value of all goods produced on EarthF) A) and C)
G) A) and D)

Question 7

A DNA barcode is being developed for use in conservation biology based on ____.

Accepted Answer

A)   mitochondrial genes in plants
B)   chloroplast genes in plants
C)   nuclear genes in animals
D)   mitochondrial genes in animals
E)   bacterial genesF) All of the above
G) A) and E)

Question 8

The global decline and extinction of insects affects which organisms?

Accepted Answer

A)   wild plants
B)   agricultural crops
C)   mammals
D)   amphibians, reptiles, and birds
E)   wild plants and agricultural crops, amphibians, reptiles, and birdsF) B) and E)
G) A) and D)

Question 9

What are at least two arguments for conserving biodiversity?

Accepted Answer

The chapter outlines three general benef...

Question 10

Overexploitation occurs as a result of ____.

Accepted Answer

A)   harvesting of predators
B)   transformation of an ecosystem to a desert
C)   soil nutrient loss
D)   the combined outcome of desertification and global warming
E)   excessive harvesting of an animal or plant speciesF) A) and E)
G) C) and D)

Question 11

A developer putting tract housing in a previously pristine area plans numerous small, open space areas where the original habitat is to remain. As a conservationist, how would you suggest changing the plan, if at all (assume that canceling the development is not an option)? Why?

Accepted Answer

One large preserve would be better than ...

Question 12

The European starling and the kudzu vine are examples of ____.

Accepted Answer

A)   native species
B)   pollution
C)   pathogenic viruses
D)   fungi
E)   invasive speciesF) B) and C)
G) A) and E)

Question 13

Most deaths among endangered Florida panthers are caused by disease.

Accepted Answer

A) True 
 B)False

Question 14

Background extinction rates once eliminated seven to eight species per year.

Accepted Answer

A) True 
 B)False

Question 15

Which habitat patch sustains more species?

Accepted Answer

A)   small
B)   large
C)   intact
D)   separated
E)   threatenedF) C) and E)
G) B) and D)

Question 16

Disturbance and exposure at borders of habitat fragments are collectively termed ____.

Accepted Answer

A)   edge effects
B)   fragmentation effects
C)   anthropogenic disturbances
D)   reduced perimeter diversity
E)   boundary declineF) B) and E)
G) A) and B)

Question 17

The yellow-bellied glider is a mammal whose continued survival depends on undisturbed eucalyptus forests.

Accepted Answer

A) True 
 B)False

Question 18

Photosynthetic organisms are essential for limiting the damage done by global warming because they ____.

Accepted Answer

A)   move carbon from the atmosphere to living organisms
B)   move carbon from the soil to the atmosphere
C)   move carbon from the atmosphere to the soil
D)   produce oxygen
E)   sequester carbon in geologic sedimentsF) B) and E)
G) B) and D)

Question 19

Beta-diversity measures diversity across communities.

Accepted Answer

A) True 
 B)False

Question 20

The communities established under pure stands of eastern hemlock will likely become extinct because of ____.

Accepted Answer

A)   feeding on the trees by the wooly adelgid
B)   the Bd infection of hemlock trees
C)   pathogenic viruses attacking these populations
D)   pathogenic fungi attacking hemlock trees
E)   invasive species exploiting their nicheF) A) and B)
G) A) and C)

Exam 55: Biodiversity and Conservation Biology

Disturbance and exposure at borders of habitat fragments are collectively termed ____.

Correct AnswerverifiedShow Answer

The global decline and extinction of insects affects which organisms?

Correct AnswerverifiedShow Answer

A DNA barcode is being developed for use in conservation biology based on ____.

Correct AnswerverifiedShow Answer

Most deaths among endangered Florida panthers are caused by disease.

Correct AnswerverifiedShow Answer

Conservation biology is a ____.

Correct AnswerverifiedShow Answer

The number of species a patch will support depends on its ____ and ____.

Correct AnswerverifiedShow Answer

Scientists have found that the Bd infection ____.

Correct AnswerverifiedShow Answer

Which habitat patch sustains more species?

Correct AnswerverifiedShow Answer

According to Myers, a biodiversity hot spot must harbor at least ____.

Correct AnswerverifiedShow Answer

The communities established under pure stands of eastern hemlock will likely become extinct because of ____.

Correct AnswerverifiedShow Answer

The yellow-bellied glider is a mammal whose continued survival depends on undisturbed eucalyptus forests.

Correct AnswerverifiedShow Answer

By one estimation, the gross global ecosystem valuation is ____.

Correct AnswerverifiedShow Answer

Why is the COI gene sequence unsuitable as a DNA barcode for plants?

Correct AnswerverifiedShow Answer

Overexploitation occurs as a result of ____.

Correct AnswerverifiedShow Answer

What are at least two arguments for conserving biodiversity?

Correct AnswerverifiedThe chapter outlines three general benef...View AnswerShow Answer

Photosynthetic organisms are essential for limiting the damage done by global warming because they ____.

Correct AnswerverifiedShow Answer

The European starling and the kudzu vine are examples of ____.

Correct AnswerverifiedShow Answer

A developer putting tract housing in a previously pristine area plans numerous small, open space areas where the original habitat is to remain. As a conservationist, how would you suggest changing the plan, if at all (assume that canceling the development is not an option)? Why?

Correct AnswerverifiedOne large preserve would be better than ...View AnswerShow Answer

Background extinction rates once eliminated seven to eight species per year.

Correct AnswerverifiedShow Answer

Beta-diversity measures diversity across communities.

Correct AnswerverifiedShow Answer

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The number of species a patch will support depends on its and .

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The chapter outlines three general benef...
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One large preserve would be better than ...
View Answer

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