Question 1

The bottle of water that you are drinking may have been purified for you by a wetland or the root system of an entire forest.This is an example of

Accepted Answer

A) an ecosystem service. 
B) water succession. 
C) a biotic resource. 
D) resource repurposing. 
E) ecosystem repair. 
A) an ecosystem service. 
B) water succession. 
C) a biotic resource. 
D) resource repurposing. 
E) ecosystem repair. A

Question 2

Which of the following statements about extinction is false

Accepted Answer

A) Extinction is the elimination of a species from Earth. 
B) Background extinction eradicates a large number of species during a relative short period of geologic time. 
C) Mass extinctions have occurred 5-6 times throughout Earth's history. 
D) Extinction rates are accelerated by human activities. 
E) The present extinction rate is 100-1,000 times the background rate. 
A) Extinction is the elimination of a species from Earth. 
B) Background extinction eradicates a large number of species during a relative short period of geologic time. 
C) Mass extinctions have occurred 5-6 times throughout Earth's history. 
D) Extinction rates are accelerated by human activities. 
E) The present extinction rate is 100-1,000 times the background rate. B

Question 3

A major challenge facing restoration ecologists is the

Accepted Answer

A) expense and time required to reclaim disturbed lands and convert them into areas with high biological diversity. 
B) relocation of human populations so that the land can be rehabilitated. 
C) enhancement of air quality to historical levels. 
D) frequency of fires due to climate changes. 
E) scarcity of open space needed for free ranging species. 
A) expense and time required to reclaim disturbed lands and convert them into areas with high biological diversity. 
B) relocation of human populations so that the land can be rehabilitated. 
C) enhancement of air quality to historical levels. 
D) frequency of fires due to climate changes. 
E) scarcity of open space needed for free ranging species. A

Question 4

If the environment was to change dramatically or a new plant disease was to break out,which plant type on the graph below would have the greatest chance of survival? The least? WHY?

Accepted Answer

The maintenance of a broad genetic base

Question 5

A(n)___ species is one that moves into an ecosystem as a result of human intervention.

Accepted Answer

A) extinct 
B) endangered. 
C) invasive 
D) endangered 
E) endemic 
A) extinct 
B) endangered. 
C) invasive 
D) endangered 
E) endemic

Question 6

On June 28ᵗʰ,2007 the bald eagle was removed from the federal list of threatened and endangered species.Suggest two possible factors that have contributed to bald eagle pairs increasing from 417 in 1963 to 9,250 pairs in 2006.

Accepted Answer

.The return of the bald eagle is one of

Question 7

Which of the following human activities does not contribute to species endangerment and extinction

Accepted Answer

A) captive breeding programs 
B) urban development causing habitat fragmentation 
C) excessive commercial harvesting 
D) pollution 
E) introduction of invasive species 
A) captive breeding programs 
B) urban development causing habitat fragmentation 
C) excessive commercial harvesting 
D) pollution 
E) introduction of invasive species

Question 8

The benefit of the Endangered Species Act is that it provides

Accepted Answer

A) economic consideration when listing species and not simply biological importance. 
B) time and space for populations of endangered species to recover and stabilize. 
C) catch and release programs for avid sportsmen. 
D) highest priority to endangered species with medicinal values. 
E) over 5,000 diverse species with federal protection. 
A) economic consideration when listing species and not simply biological importance. 
B) time and space for populations of endangered species to recover and stabilize. 
C) catch and release programs for avid sportsmen. 
D) highest priority to endangered species with medicinal values. 
E) over 5,000 diverse species with federal protection.

Question 9

An area recently vacated by glaciers will have

Accepted Answer

A) low species richness. 
B) high species richness. 
C) a variety of ecological niches. 
D) high biological diversity. 
E) structurally complex vegetation. 
A) low species richness. 
B) high species richness. 
C) a variety of ecological niches. 
D) high biological diversity. 
E) structurally complex vegetation.

Question 10

Define ecosystem services and discuss the ecosystem services provided by forests and coastal areas.Discuss how these services are altered by human activity.

Accepted Answer

Ecosystem services are environmental ben

Question 11

The irreversible elimination of a species from Earth is termed

Accepted Answer

A) the ecological cycle. 
B) decomposition. 
C) extinction. 
D) natural selection. 
E) succession. 
A) the ecological cycle. 
B) decomposition. 
C) extinction. 
D) natural selection. 
E) succession.

Question 12

What is conservation biology
 Devise an in situ and an ex situ conservation plan for the preservation of the White Rhinoceros.

Accepted Answer

Conservation biology is the scientific s

Question 13

A one-hectare forest community is sampled in early August.The sample yields 12 small trees,4 types of vines,as well as 17 native shrubs that represent 10 species.What can be estimated from the sample for the shrubs in the forest community

Accepted Answer

A) the forest's productivity 
B) the species richness 
C) the degree of forest disturbance 
D) the stability of the ecosystem 
E) the uniformity of species distribution in the ecosystem 
A) the forest's productivity 
B) the species richness 
C) the degree of forest disturbance 
D) the stability of the ecosystem 
E) the uniformity of species distribution in the ecosystem

Question 14

Which of the following is currently considered the leading cause of extinction

Accepted Answer

A) poachers 
B) pollution 
C) overexploitation of species 
D) habitat loss 
E) competition from introduced species 
A) poachers 
B) pollution 
C) overexploitation of species 
D) habitat loss 
E) competition from introduced species

Question 15

Which of the following is a type of in situ conservation

Accepted Answer

A) Aransas,TX National Wildlife Refuge for whooping cranes 
B) California condor breeding program 
C) aquaculture for farm-raised salmon 
D) Phoenix,AZ desert botanical garden 
E) San Diego zoo 
A) Aransas,TX National Wildlife Refuge for whooping cranes 
B) California condor breeding program 
C) aquaculture for farm-raised salmon 
D) Phoenix,AZ desert botanical garden 
E) San Diego zoo

Question 16

Which of the following is an example of an ecosystem service

Accepted Answer

A) the state provides free maintenance of highway medians keeping the landscape beautiful 
B) bacteria live in a termite's gut allowing the termite to be able to digest wood 
C) oceans act as a giant thermostat,interacting with the atmosphere and land to control Earth's climate 
D) tropical forests are removed to provide suitable land for subsistence farming 
E) sand dunes provide the perfect "front yard" as human development expands to the coastline 
A) the state provides free maintenance of highway medians keeping the landscape beautiful 
B) bacteria live in a termite's gut allowing the termite to be able to digest wood 
C) oceans act as a giant thermostat,interacting with the atmosphere and land to control Earth's climate 
D) tropical forests are removed to provide suitable land for subsistence farming 
E) sand dunes provide the perfect "front yard" as human development expands to the coastline

Question 17

Distinguish between extinct,endangered,and threatened species.Give two characteristics that are common to many endangered species.

Accepted Answer

An endangered species has severely reduc

Question 18

The number of different species in a community describes its

Accepted Answer

A) endemic species. 
B) threatened species. 
C) species richness. 
D) invasive species. 
E) ecosystem services. 
A) endemic species. 
B) threatened species. 
C) species richness. 
D) invasive species. 
E) ecosystem services.

Question 19

In an ecosystem,where is species richness greatest

Accepted Answer

A) in the center of communities 
B) at the edges of adjacent communities in the ecotone 
C) in specific areas where environmental stresses are the highest 
D) in specific areas where one species enjoys a decided dominance 
E) species richness is equally distributed in ecosystems 
A) in the center of communities 
B) at the edges of adjacent communities in the ecotone 
C) in specific areas where environmental stresses are the highest 
D) in specific areas where one species enjoys a decided dominance 
E) species richness is equally distributed in ecosystems

Question 20

The first step in an ecological restoration effort is to

Accepted Answer

A) re-establish natural predators. 
B) assess the current biological diversity. 
C) reintroduce rare species. 
D) establish monoculture to provide stability. 
E) remove the cause of habitat degradation. 
A) re-establish natural predators. 
B) assess the current biological diversity. 
C) reintroduce rare species. 
D) establish monoculture to provide stability. 
E) remove the cause of habitat degradation.

The bottle of water that you are drinking may have been purified for you by a wetland or the root system of an entire forest.This is an example of

Which of the following statements about extinction is false

A major challenge facing restoration ecologists is the

If the environment was to change dramatically or a new plant disease was to break out,which plant type on the graph below would have the greatest chance of survival? The least? WHY?

A(n)___ species is one that moves into an ecosystem as a result of human intervention.

On June 28ᵗʰ,2007 the bald eagle was removed from the federal list of threatened and endangered species.Suggest two possible factors that have contributed to bald eagle pairs increasing from 417 in 1963 to 9,250 pairs in 2006.

Which of the following human activities does not contribute to species endangerment and extinction

The benefit of the Endangered Species Act is that it provides

An area recently vacated by glaciers will have

Define ecosystem services and discuss the ecosystem services provided by forests and coastal areas.Discuss how these services are altered by human activity.

The irreversible elimination of a species from Earth is termed

What is conservation biology Devise an in situ and an ex situ conservation plan for the preservation of the White Rhinoceros.

A one-hectare forest community is sampled in early August.The sample yields 12 small trees,4 types of vines,as well as 17 native shrubs that represent 10 species.What can be estimated from the sample for the shrubs in the forest community

Which of the following is currently considered the leading cause of extinction

Which of the following is a type of in situ conservation

Which of the following is an example of an ecosystem service

Distinguish between extinct,endangered,and threatened species.Give two characteristics that are common to many endangered species.

The number of different species in a community describes its

In an ecosystem,where is species richness greatest

The first step in an ecological restoration effort is to

The Environmental Challenges We Face

Sustainability and Human Values

Environmental History, Politics, and Economics

Risk Analysis and Environmental Health Hazards

How Ecosystems Work

Ecosystems and Evolution

Human Population Change and the Environment

Air and Air Pollution

Global Atmospheric Changes

Freshwater Resources and Water Pollution

The Ocean and Fisheries

Mineral and Soil Resources

Land Resources

Agriculture and Food Resources

Solid and Hazardous Waste

Nonrenewable Energy Resources

Renewable Energy Resources

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Exam 15: Biodiversity and Conservation

The bottle of water that you are drinking may have been purified for you by a wetland or the root system of an entire forest.This is an example of

Which of the following statements about extinction is false

A major challenge facing restoration ecologists is the

If the environment was to change dramatically or a new plant disease was to break out,which plant type on the graph below would have the greatest chance of survival? The least? WHY?

A(n)___ species is one that moves into an ecosystem as a result of human intervention.

On June 28ᵗʰ,2007 the bald eagle was removed from the federal list of threatened and endangered species.Suggest two possible factors that have contributed to bald eagle pairs increasing from 417 in 1963 to 9,250 pairs in 2006.

Which of the following human activities does not contribute to species endangerment and extinction

The benefit of the Endangered Species Act is that it provides

An area recently vacated by glaciers will have

Define ecosystem services and discuss the ecosystem services provided by forests and coastal areas.Discuss how these services are altered by human activity.

The irreversible elimination of a species from Earth is termed

What is conservation biology Devise an in situ and an ex situ conservation plan for the preservation of the White Rhinoceros.

A one-hectare forest community is sampled in early August.The sample yields 12 small trees,4 types of vines,as well as 17 native shrubs that represent 10 species.What can be estimated from the sample for the shrubs in the forest community

Which of the following is currently considered the leading cause of extinction

Which of the following is a type of in situ conservation

Which of the following is an example of an ecosystem service

Distinguish between extinct,endangered,and threatened species.Give two characteristics that are common to many endangered species.

The number of different species in a community describes its

In an ecosystem,where is species richness greatest

The first step in an ecological restoration effort is to

The Environmental Challenges We Face

Sustainability and Human Values

Environmental History, Politics, and Economics

Risk Analysis and Environmental Health Hazards

How Ecosystems Work

Ecosystems and Evolution

Human Population Change and the Environment

Air and Air Pollution

Global Atmospheric Changes

Freshwater Resources and Water Pollution

The Ocean and Fisheries

Mineral and Soil Resources

Land Resources

Agriculture and Food Resources

Solid and Hazardous Waste

Nonrenewable Energy Resources

Renewable Energy Resources

Filters