Question 1

As a habitat patch gets smaller, it

Accepted Answer

A)  cannot support populations of species that require large areas. 
B)  supports only small populations of many species. 
C)  is influenced to an increasing degree by edge effects. 
D)  is invaded by species from surrounding habitats. 
E)  All of the above 
A)  cannot support populations of species that require large areas. 
B)  supports only small populations of many species. 
C)  is influenced to an increasing degree by edge effects. 
D)  is invaded by species from surrounding habitats. 
E)  All of the above

Question 2

Which of the following statements about the Blackburn sphinx moth is false?

Accepted Answer

A)  It recently went extinct. 
B)  It is the likely natural pollinator of the Hawaiian alula plant. 
C)  It is the largest native insect of the Hawaiian Islands. 
D)  It is closely related to the tobacco hornworm. 
E)  All of the above are true; none is false. 
A)  It recently went extinct. 
B)  It is the likely natural pollinator of the Hawaiian alula plant. 
C)  It is the largest native insect of the Hawaiian Islands. 
D)  It is closely related to the tobacco hornworm. 
E)  All of the above are true; none is false.

Question 3

The most significant cause of species endangerment in the United States is

Accepted Answer

A)  air pollution. 
B)  climate change. 
C)  the introduction of exotic species. 
D)  habitat loss. 
E)  acid rain. 
A)  air pollution. 
B)  climate change. 
C)  the introduction of exotic species. 
D)  habitat loss. 
E)  acid rain.

Question 4

Experiments on wetland restoration have demonstrated that planting a richer mixture of species is associated with

Accepted Answer

A)  faster accumulation of belowground nitrogen. 
B)  more complex vegetation structure. 
C)  more rapid development of vegetation cover. 
D)  Both b and c 
E)  All of the above 
A)  faster accumulation of belowground nitrogen. 
B)  more complex vegetation structure. 
C)  more rapid development of vegetation cover. 
D)  Both b and c 
E)  All of the above

Question 5

Which of the following efforts to preserve biodiversity best exemplifies restoration ecology?

Accepted Answer

A)  A campaign to discourage pesticide use on lawns 
B)  A project to convert ranch land into a natural prairie 
C)  Designation of the habitat of an endangered species as a protected area 
D)  Elimination of commercial trade in products derived from endangered and threatened species 
E)  A captive breeding program to maintain an endangered species 
A)  A campaign to discourage pesticide use on lawns 
B)  A project to convert ranch land into a natural prairie 
C)  Designation of the habitat of an endangered species as a protected area 
D)  Elimination of commercial trade in products derived from endangered and threatened species 
E)  A captive breeding program to maintain an endangered species

Question 6

A species-area plot indicates the

Accepted Answer

A)  overall distribution, or area, occupied by a species. 
B)  relationship between the body size of a species and the amount of territory or home range it requires. 
C)  number of species found, on average, in tropical versus northern areas. 
D)  number of species found, on average, in a habitat of a given size. 
E)  relationship between the body size of a species and the specific habitat it requires. 
A)  overall distribution, or area, occupied by a species. 
B)  relationship between the body size of a species and the amount of territory or home range it requires. 
C)  number of species found, on average, in tropical versus northern areas. 
D)  number of species found, on average, in a habitat of a given size. 
E)  relationship between the body size of a species and the specific habitat it requires.

Question 7

The most important cause of endangerment of species in the United States currently is

Accepted Answer

A)  climate change. 
B)  invasive species. 
C)  overexploitation. 
D)  habitat loss. 
E)  loss of mutualists. 
A)  climate change. 
B)  invasive species. 
C)  overexploitation. 
D)  habitat loss. 
E)  loss of mutualists.

Question 8

Invasive plant species would be expected to

Accepted Answer

A)  devote a higher-than-average allocation of resources to reproduction. 
B)  have higher-than-average concentrations of secondary compounds. 
C)  be susceptible to a greater-than-average number of herbivores. 
D)  Both a and b 
E)  None of the above 
A)  devote a higher-than-average allocation of resources to reproduction. 
B)  have higher-than-average concentrations of secondary compounds. 
C)  be susceptible to a greater-than-average number of herbivores. 
D)  Both a and b 
E)  None of the above

Question 9

Winter moth, a species of moth that was introduced to United States from Europe, has spread widely and become a threat to many trees. For this reason, winter moth is considered to be a(n) _______ species.

Accepted Answer

The answer of Winter moth, a species of moth that...

Question 10

New Guinea is a region of the world where species richness is particularly high. For this reason it is called a(n) _______.

Accepted Answer

The answer of New Guinea is a region of the...

Question 11

To help identify species of exotic plants that have the potential to become invasive if they were to be introduced into North America, conservation biologists make use of a "decision tree." Which of the following plant characteristics might cause biologists to deny approval for a proposed introduction of an exotic plant species?

Accepted Answer

A)  Seeds of the plant do not require pretreatment for germination. 
B)  The plant spreads quickly by vegetative propagation. 
C)  The plant is invasive outside of North America. 
D)  The juvenile period of the plant is less than five years. 
E)  All of the above 
A)  Seeds of the plant do not require pretreatment for germination. 
B)  The plant spreads quickly by vegetative propagation. 
C)  The plant is invasive outside of North America. 
D)  The juvenile period of the plant is less than five years. 
E)  All of the above

Question 12

Which of the following statements about elephants and the ivory trade is false?

Accepted Answer

A)  African elephants are endangered throughout their range. 
B)  The geographical source of ivory can be determined by the use of DNA markers. 
C)  There is a strong demand for ivory in Japan and China because of its use in folk medicines. 
D)  Online sales of ivory on eBay have been banned. 
E)  The legal mechanism for prohibiting the ivory trade is the international agreement called the Convention on International Trade in Endangered Species. 
A)  African elephants are endangered throughout their range. 
B)  The geographical source of ivory can be determined by the use of DNA markers. 
C)  There is a strong demand for ivory in Japan and China because of its use in folk medicines. 
D)  Online sales of ivory on eBay have been banned. 
E)  The legal mechanism for prohibiting the ivory trade is the international agreement called the Convention on International Trade in Endangered Species.

Question 13

Which of the following can be considered priorities conservation biologists use to establish protected areas?

Accepted Answer

A)  Control of invasive, exotic species. 
B)  Creating new habitats. 
C)  Captive breeding programs. 
D)  Decreasing the trade of exploited species. 
E)  All of the above 
A)  Control of invasive, exotic species. 
B)  Creating new habitats. 
C)  Captive breeding programs. 
D)  Decreasing the trade of exploited species. 
E)  All of the above

Question 14

The practice of using exploited lands in ways that sustain biodiversity is known as _______.

Accepted Answer

reconcilia

Question 15

A builder is planning to build approximately ten new homes on a parcel of land. The local zoning regulations require that the builder set aside some of the property for open, green space for animal habitat. The builder could set aside one large parcel for the green space or he could set aside many, smaller plots. Which might be considered the best choice, from the point of view of a conservation biologist?

Accepted Answer

A)  The larger plot is preferable because it could allow for more interbreeding and less edge effects. 
B)  There really is no difference between the two options. 
C)  The isolated plots are preferable because they spread out the habitat. 
D)  The larger plot is preferable because the isolated plots are more vulnerable to edge effects. 
E)  The smaller plots are preferable as they will create more interbreeding in many species. 
A)  The larger plot is preferable because it could allow for more interbreeding and less edge effects. 
B)  There really is no difference between the two options. 
C)  The isolated plots are preferable because they spread out the habitat. 
D)  The larger plot is preferable because the isolated plots are more vulnerable to edge effects. 
E)  The smaller plots are preferable as they will create more interbreeding in many species.

Question 16

Forest fragmentation has led to increases in cowbird populations because fragmentation has

Accepted Answer

A)  caused the demise of a predator of cowbirds. 
B)  caused cowbirds to be exposed to species of birds previously unknown to them. 
C)  increased the food supply for cowbirds. 
D)  decreased the range of the cowbirds' parasites. 
E)  None of the above 
A)  caused the demise of a predator of cowbirds. 
B)  caused cowbirds to be exposed to species of birds previously unknown to them. 
C)  increased the food supply for cowbirds. 
D)  decreased the range of the cowbirds' parasites. 
E)  None of the above

Question 17

Captive propagation is a useful conservation tool, when

Accepted Answer

A)  there is space in zoos, aquariums, and botanical gardens for breeding a few individuals. 
B)  the areas of origin of the captive individuals are known. 
C)  the threats that endangered the species are being alleviated so that captive-reared individuals can later be released back into the wild. 
D)  there are sufficient caretakers. 
E)  None of the above; captive propagation should never be used because it directs attention away from the need to protect the species in their natural habitats. 
A)  there is space in zoos, aquariums, and botanical gardens for breeding a few individuals. 
B)  the areas of origin of the captive individuals are known. 
C)  the threats that endangered the species are being alleviated so that captive-reared individuals can later be released back into the wild. 
D)  there are sufficient caretakers. 
E)  None of the above; captive propagation should never be used because it directs attention away from the need to protect the species in their natural habitats.

Question 18

Introduced species that spread widely and become unduly abundant are known as _______ species.

Accepted Answer

A)  spreader 
B)  invasive 
C)  super 
D)  extravagant 
E)  hammerhead 
A)  spreader 
B)  invasive 
C)  super 
D)  extravagant 
E)  hammerhead

Question 19

Which of the following would not be considered a measure of biodiversity?

Accepted Answer

A)  Six alleles are present at the alcohol dehydrogenase gene in a population of Drosophila melanogaster. 
B)  In a population of minnows, 47 percent of the loci are polymorphic. 
C)  In a human population, 24 percent of individuals are polymorphic at the Y76Y locus. 
D)  A sample of water taken from the Hudson River has 369 different algal species. 
E)  All of the above are measures of biodiversity. 
A)  Six alleles are present at the alcohol dehydrogenase gene in a population of Drosophila melanogaster. 
B)  In a population of minnows, 47 percent of the loci are polymorphic. 
C)  In a human population, 24 percent of individuals are polymorphic at the Y76Y locus. 
D)  A sample of water taken from the Hudson River has 369 different algal species. 
E)  All of the above are measures of biodiversity.

Question 20

Conservation biologists rely heavily on _______ to estimate how many species will be lost due to habitat loss.

Accepted Answer

A)  the CITES guidelines 
B)  the principles of species-area relationships 
C)  captive breeding programs 
D)  the principles of natural selection 
E)  None of the above 
A)  the CITES guidelines 
B)  the principles of species-area relationships 
C)  captive breeding programs 
D)  the principles of natural selection 
E)  None of the above

Exam 59: Conservation Biology

As a habitat patch gets smaller, it

Which of the following statements about the Blackburn sphinx moth is false?

The most significant cause of species endangerment in the United States is

Experiments on wetland restoration have demonstrated that planting a richer mixture of species is associated with

Which of the following efforts to preserve biodiversity best exemplifies restoration ecology?

A species-area plot indicates the

The most important cause of endangerment of species in the United States currently is

Invasive plant species would be expected to

Winter moth, a species of moth that was introduced to United States from Europe, has spread widely and become a threat to many trees. For this reason, winter moth is considered to be a(n) _______ species.

New Guinea is a region of the world where species richness is particularly high. For this reason it is called a(n) _______.

Which of the following statements about elephants and the ivory trade is false?

Which of the following can be considered priorities conservation biologists use to establish protected areas?

The practice of using exploited lands in ways that sustain biodiversity is known as _______.

Forest fragmentation has led to increases in cowbird populations because fragmentation has

Captive propagation is a useful conservation tool, when

Introduced species that spread widely and become unduly abundant are known as _______ species.

Which of the following would not be considered a measure of biodiversity?

Conservation biologists rely heavily on _______ to estimate how many species will be lost due to habitat loss.

Studying Life

Small Molecules and the Chemistry of Life

Proteins, Carbohydrates, and Lipids

Nucleic Acids and the Origin of Life

Cells: the Working Units of Life

Cell Membranes

Cell Signaling and Communication

Energy, Enzymes, and Metabolism

Pathways That Harvest Chemical Energy

Photosynthesis: Energy From Sunlight

The Cell Cycle and Cell Division

Inheritance, Genes, and Chromosomes

Dna and Its Role in Heredity

From Dna to Protein: Gene Expression

Gene Mutation and Molecular Medicine

Regulation of Gene Expression

Genomes

Recombinent Dna and Biotechnology

Differential Gene Expression in Development

Development and Evolutionary Change

Evidence and Mechanisms of Evolution

Reconstructing and Using Phylogenies

Species and Their Formation

Evolution of Genes and Genomes

The History of Life on Earth

Bacteria and Archaea: the Prokaryotic Domains

The Origin and Diversification of Eukaryotes

Plants Without Seeds: From Water to Land

The Evolution of Seed Plants

Fungi: Recyclers, Pathogens, Parasites, and Plant Partners

Animal Origins and the Evolution of Body Plans

Protostome Animals

Deuterostome Animals

The Plant Body

Transport in Plants

Plant Nutrition

Regulation of Plant Growth

Reproduction in Flowering Plants

Plant Responses to Environmental Challenges

Physiology, Homeostasis, and Temperature Regulation

Animal Hormones

Immunology: Animal Defense Systems

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Animal Development

Neurons and Nervous Systems

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The Mammalian Nervous System: Structure and Higher Function

Musculoskeletal Systems

Gas Exchange in Animals

Circulatory Systems

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Salt and Water Balance and Nitrogen

Animal Behavior

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Population Ecology

Species Interaction and Coevolution

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