Question 1

____________________ preserve plant species,which is the only remaining means of maintaining long-term genetic progress.

Accepted Answer

The answer of ____________________ preserve plant species,which is the only...

Question 2

The extinction of a keystone species could lead to the extinction of other forms of life.

Accepted Answer

A) True 
 B)False

Question 3

Some biologists suggest that raising populations of endangered or threatened species on farms can take pressure off the species declining numbers.Would you support this idea? Consider species that are raised this way and identify ethical,social,and ecological reasons why you would support or disagree with farms programs.

Accepted Answer

Ethical - yes: this is a practical way t

Question 4

Habitat fragmentation occurs when a habitat is broken into smaller areas by a man-made divide such as roads,logging,or urban development. Why is this a cause of ecological concern?

Accepted Answer

These habitat islands isolate population

Question 5

How can harmful invasive species disrupt ecosystems? Give examples.

Accepted Answer

Harmful invasive species can c

Question 6

All of the below are drawbacks of gene banks except that

Accepted Answer

A)  lack of funding does not provide enough capacity to store all endangered species. 
B)  some species cannot be stored. 
C)  seeds in storage do not evolve and therefore become less fit for reintroduction into a changed environment. 
D)  they require little maintenance. 
E)  they are vulnerable to natural disasters. 
A)  lack of funding does not provide enough capacity to store all endangered species. 
B)  some species cannot be stored. 
C)  seeds in storage do not evolve and therefore become less fit for reintroduction into a changed environment. 
D)  they require little maintenance. 
E)  they are vulnerable to natural disasters.

Question 7

When species become endangered,it is an indicator that the health of vital ecosystems is beginning to unravel or decline.

Accepted Answer

A) True 
 B)False

Question 8

Characteristics of the Florida Everglades that possibly explains why the Burmese and African pythons are successful invasive species include:

Accepted Answer

A)  The Everglades have a similar climate to which the snakes were accustomed or could easily adapt to. 
B)  The only natural predator in the Everglades is the American alligator. 
C)  Absence of fire. 
D)  All of the above answers. 
E)  None of the above answers. 
A)  The Everglades have a similar climate to which the snakes were accustomed or could easily adapt to. 
B)  The only natural predator in the Everglades is the American alligator. 
C)  Absence of fire. 
D)  All of the above answers. 
E)  None of the above answers.

Question 9

An example of an international treaty or convention that helps to protect wild species from extinction is the ____________________ .

Accepted Answer

Convention on International Tr

Question 10

Wild plant species have instrumental value as all but which of the following?

Accepted Answer

A)  the basis for new crop strains 
B)  fibers and dyes 
C)  a source of genetic information 
D)  pharmaceuticals 
E)  none of these 
A)  the basis for new crop strains 
B)  fibers and dyes 
C)  a source of genetic information 
D)  pharmaceuticals 
E)  none of these

Question 11

The earth has never been able to recover from a mass extinction.

Accepted Answer

A) True 
 B)False

Question 12

When wildlife experts judge which species to save,they are least likely to choose a species because it

Accepted Answer

A)  has the best chance for survival. 
B)  is furry and charismatic. 
C)  has the most ecological value to the ecosystem. 
D)  is potentially useful for agriculture or medicine. 
E)  has a huge economic value. 
A)  has the best chance for survival. 
B)  is furry and charismatic. 
C)  has the most ecological value to the ecosystem. 
D)  is potentially useful for agriculture or medicine. 
E)  has a huge economic value.

Question 13

An endangered species is any species that can

Accepted Answer

A)  undergo alteration of its genetic traits. 
B)  become rare within the next century. 
C)  soon become extinct in all or part of its range. 
D)  eventually become threatened or rare. 
E)  be considered economically important, but is rare. 
A)  undergo alteration of its genetic traits. 
B)  become rare within the next century. 
C)  soon become extinct in all or part of its range. 
D)  eventually become threatened or rare. 
E)  be considered economically important, but is rare.

Question 14

Many ____________________ are native to tropical regions that are becoming more vulnerable to extinction because of development.

Accepted Answer

The answer of Many ____________________ are native to tropical regions...

Question 15

Rehabilitation of wild endangered species is best done in zoos,aquariums and botanical gardens.

Accepted Answer

A) True 
 B)False

Question 16

Characteristics of species most likely to become extinct include all but which of the following?

Accepted Answer

A)  They are commercially valuable. 
B)  They have a narrow distribution. 
C)  They have a low reproduction rate. 
D)  They eat low on the food chain. 
E)  They have a specialized niche. 
A)  They are commercially valuable. 
B)  They have a narrow distribution. 
C)  They have a low reproduction rate. 
D)  They eat low on the food chain. 
E)  They have a specialized niche.

Question 17

Why had it been so difficult to get critical habitat needed for survival of species under the Endangered Species Act?

Accepted Answer

A)  habitat was unavailable 
B)  few people in the United States support the Act 
C)  few species needed critical habitat to survive 
D)  lack of funds to support designating such habitats 
E)  few species needed protection 
A)  habitat was unavailable 
B)  few people in the United States support the Act 
C)  few species needed critical habitat to survive 
D)  lack of funds to support designating such habitats 
E)  few species needed protection

Question 18

A single male lion living to age 7 in Kenya is worth the most as a(n)

Accepted Answer

A)  sporting trophy. 
B)  tourist attraction. 
C)  exotic pet. 
D)  specimen to be sold alive to a zoo. 
E)  specimen killed for its skin. 
A)  sporting trophy. 
B)  tourist attraction. 
C)  exotic pet. 
D)  specimen to be sold alive to a zoo. 
E)  specimen killed for its skin.

Question 19

What are two major hindrances to protecting species extinction within a single human lifetime?

Accepted Answer

Ignorance of ecological princi

Question 20

Captive breeding programs in zoos

Accepted Answer

A)  eliminate the need to preserve critical habitats. 
B)  require the captive population to number between 100 and 500. 
C)  increase the genetic variability of species. 
D)  are relatively inexpensive to operate. 
E)  are used for all zoo species. 
A)  eliminate the need to preserve critical habitats. 
B)  require the captive population to number between 100 and 500. 
C)  increase the genetic variability of species. 
D)  are relatively inexpensive to operate. 
E)  are used for all zoo species.

____________________ preserve plant species,which is the only remaining means of maintaining long-term genetic progress.

The extinction of a keystone species could lead to the extinction of other forms of life.

Habitat fragmentation occurs when a habitat is broken into smaller areas by a man-made divide such as roads,logging,or urban development. Why is this a cause of ecological concern?

How can harmful invasive species disrupt ecosystems? Give examples.

All of the below are drawbacks of gene banks except that

When species become endangered,it is an indicator that the health of vital ecosystems is beginning to unravel or decline.

Characteristics of the Florida Everglades that possibly explains why the Burmese and African pythons are successful invasive species include:

An example of an international treaty or convention that helps to protect wild species from extinction is the ____________________ .

Wild plant species have instrumental value as all but which of the following?

The earth has never been able to recover from a mass extinction.

When wildlife experts judge which species to save,they are least likely to choose a species because it

An endangered species is any species that can

Many ____________________ are native to tropical regions that are becoming more vulnerable to extinction because of development.

Rehabilitation of wild endangered species is best done in zoos,aquariums and botanical gardens.

Characteristics of species most likely to become extinct include all but which of the following?

Why had it been so difficult to get critical habitat needed for survival of species under the Endangered Species Act?

A single male lion living to age 7 in Kenya is worth the most as a(n)

What are two major hindrances to protecting species extinction within a single human lifetime?

Captive breeding programs in zoos

Environmental Problems, Their Causes, and Sustainability

Science, Matter, Energy, and Systems

Biodiversity and Evolution

Community Ecology, Population Ecology, and the Human Population

Sustaining Biodiversity: The Ecosystem Approach

Food,Soil,and Pest Management

Water Resources and Water Pollution

Nonrenewable Energy Resources

Energy Efficiency and Renewable Energy

Environmental Hazards and Human Health

Air Pollution, Climate Change, and Ozone Depletion

Urbanization and Solid and Hazardous Waste

Economics, Politics, Worldviews, and Sustainability

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Exam 5: Sustaining Biodiversity: The Species Approach

____________________ preserve plant species,which is the only remaining means of maintaining long-term genetic progress.

The extinction of a keystone species could lead to the extinction of other forms of life.

Habitat fragmentation occurs when a habitat is broken into smaller areas by a man-made divide such as roads,logging,or urban development. Why is this a cause of ecological concern?

How can harmful invasive species disrupt ecosystems? Give examples.

All of the below are drawbacks of gene banks except that

When species become endangered,it is an indicator that the health of vital ecosystems is beginning to unravel or decline.

Characteristics of the Florida Everglades that possibly explains why the Burmese and African pythons are successful invasive species include:

An example of an international treaty or convention that helps to protect wild species from extinction is the ____________________ .

Wild plant species have instrumental value as all but which of the following?

The earth has never been able to recover from a mass extinction.

When wildlife experts judge which species to save,they are least likely to choose a species because it

An endangered species is any species that can

Many ____________________ are native to tropical regions that are becoming more vulnerable to extinction because of development.

Rehabilitation of wild endangered species is best done in zoos,aquariums and botanical gardens.

Characteristics of species most likely to become extinct include all but which of the following?

Why had it been so difficult to get critical habitat needed for survival of species under the Endangered Species Act?

A single male lion living to age 7 in Kenya is worth the most as a(n)

What are two major hindrances to protecting species extinction within a single human lifetime?

Captive breeding programs in zoos

Environmental Problems, Their Causes, and Sustainability

Science, Matter, Energy, and Systems

Biodiversity and Evolution

Community Ecology, Population Ecology, and the Human Population

Sustaining Biodiversity: The Ecosystem Approach

Food,Soil,and Pest Management

Water Resources and Water Pollution

Nonrenewable Energy Resources

Energy Efficiency and Renewable Energy

Environmental Hazards and Human Health

Air Pollution, Climate Change, and Ozone Depletion

Urbanization and Solid and Hazardous Waste

Economics, Politics, Worldviews, and Sustainability

Filters