Question 1

The highest concentrations of environmental pollutants are typically found in the predators at the top of the food web.

Accepted Answer

A) True 
 B)False

Question 2

The conversion of N₂ to NH₄⁺ is called ____________________.

Accepted Answer

The answer of The conversion of N₂ to NH₄⁺ is...

Question 3

Net primary productivity is typically limited by the amount of nitrogen and phosphorus available to producers; when these nutrients are increased, NPP increases as well.

Accepted Answer

A) True 
 B)False

Question 4

What characteristics would you expect to find in species that will most likely prosper as projected climate change occurs?

Accepted Answer

A) organisms with narrow tolerances that can live in specialized environments 
B) organisms that have broad tolerances that can live in a variety of habitats 
C) organisms that live in very stable environments 
D) organisms that can live only if they form mutualistic relationships with other organisms 
A) organisms with narrow tolerances that can live in specialized environments 
B) organisms that have broad tolerances that can live in a variety of habitats 
C) organisms that live in very stable environments 
D) organisms that can live only if they form mutualistic relationships with other organisms

Question 5

Having a sustainable impact on the Earth and our biosphere means that we must

Accepted Answer

A) produce more fertilizers to feed a growing population. 
B) take advantage of global warming by growing more crops in areas that were previously unavailable for agriculture. 
C) find ways to recycle carbon dioxide more rapidly. 
D) create better balances between our consumption of resources and the rates at which they can be replenished. 
A) produce more fertilizers to feed a growing population. 
B) take advantage of global warming by growing more crops in areas that were previously unavailable for agriculture. 
C) find ways to recycle carbon dioxide more rapidly. 
D) create better balances between our consumption of resources and the rates at which they can be replenished.

Question 6

Why do synthetic chemicals and metals tend to bioaccumulate so readily?

Accepted Answer

A) These substances are so rare in natural environments that living organisms have developed very efficient methods of collecting them. 
B) Natural reservoirs are so large that when expressed as a concentration putting the same amount into an organism will always produce an elevated value. 
C) Synthetic chemicals often have no nutritional value, so they are simply stored in the body and passed on when an organism is eaten. 
D) They are stable chemicals and are accumulated in the cells of organisms more rapidly than they can be removed. 
A) These substances are so rare in natural environments that living organisms have developed very efficient methods of collecting them. 
B) Natural reservoirs are so large that when expressed as a concentration putting the same amount into an organism will always produce an elevated value. 
C) Synthetic chemicals often have no nutritional value, so they are simply stored in the body and passed on when an organism is eaten. 
D) They are stable chemicals and are accumulated in the cells of organisms more rapidly than they can be removed.

Question 7

Bisphenol A is found in plastic water bottles and has been shown to cause an increased risk of diabetes and reproductive problems among other disorders. Bisphenol A acts as a(n)____________________.

Accepted Answer

The answer of Bisphenol A is found in plastic water...

Question 8

The addition of carbon dioxide to the atmosphere also increases the amount of carbon dioxide dissolved in ocean water. This has the effect of

Accepted Answer

A) cooling the ocean water by increasing the rate of evaporation of ocean water. 
B) warming the ocean water by decreasing the rate of evaporation of ocean water. 
C) increasing the acidity of ocean water because dissolved carbon dioxide makes the water more acidic. 
D) decreasing the acidity of ocean water because dissolved carbon dioxide makes the water less acidic. 
A) cooling the ocean water by increasing the rate of evaporation of ocean water. 
B) warming the ocean water by decreasing the rate of evaporation of ocean water. 
C) increasing the acidity of ocean water because dissolved carbon dioxide makes the water more acidic. 
D) decreasing the acidity of ocean water because dissolved carbon dioxide makes the water less acidic.

Question 9

Nitrogen gas makes up approximately 20 percent of the air we breathe.

Accepted Answer

A) True 
 B)False

Question 10

About _____ percent of the human population lives near the coast. This makes the coasts _____.

Accepted Answer

A) 50; vulnerable to disruption by humans 
B) 30; vulnerable to erosion by wave action 
C) 80; more stable due to foundations from buildings 
D) 20; more stable due to the addition of sand for recreational purposes 
A) 50; vulnerable to disruption by humans 
B) 30; vulnerable to erosion by wave action 
C) 80; more stable due to foundations from buildings 
D) 20; more stable due to the addition of sand for recreational purposes

Question 11

As a group, the ____________________ gases allow light energy to pass through the atmosphere but absorb heat energy as it passes through the atmosphere to outer space.

Accepted Answer

The answer of As a group, the ____________________ gases allow...

Question 12

Ample evidence now exists to show that worldwide environmental changes are occurring; one example is the

Accepted Answer

A) increased NPP observed within the world's aquatic ecosystems. 
B) widespread occurrence of invasive species. 
C) moderate decline in atmospheric carbon dioxide concentrations. 
D) expansion of forested land as tree-replanting efforts become more accepted. 
A) increased NPP observed within the world's aquatic ecosystems. 
B) widespread occurrence of invasive species. 
C) moderate decline in atmospheric carbon dioxide concentrations. 
D) expansion of forested land as tree-replanting efforts become more accepted.

Question 13

When nitrogen is added to nitrogen-poor aquatic ecosystems, productivity _____ and the number of species _____.

Accepted Answer

A) increases; declines 
B) increases; increases 
C) declines; declines 
D) declines; increases 
A) increases; declines 
B) increases; increases 
C) declines; declines 
D) declines; increases

Question 14

Due to the reduction in pack ice-an effect of global warming-polar bears are eating more geese and goose eggs instead of seals.

Accepted Answer

A) True 
 B)False

Question 15

Intentionally supplementing nitrogen into a monoculture like a cornfield has predictable and desirable results. Is the same true when added to a system as complex as a community?

Accepted Answer

A) Yes; both primary production and species diversity increase. 
B) Yes; primary production decreases but species diversity increases. 
C) No; both primary production and species diversity decrease. 
D) No; primary production increases but species diversity decreases. 
A) Yes; both primary production and species diversity increase. 
B) Yes; primary production decreases but species diversity increases. 
C) No; both primary production and species diversity decrease. 
D) No; primary production increases but species diversity decreases.

Question 16

What best describes the relationship between cutting down forests and changes in atmospheric carbon dioxide levels?

Accepted Answer

A) Herbivore populations decline in the absence of forests, and without their respiration less carbon dioxide is recycled into the atmosphere. 
B) The carbon dioxide used by the plants for cellular respiration would all be released into the atmosphere at once. 
C) Trees naturally die and decompose, but when turned into lumber their carbon is prevented from recycling back to the atmosphere. 
D) In the absence of forest plants, there would be less carbon dioxide removed from the atmosphere for use during photosynthesis. 
A) Herbivore populations decline in the absence of forests, and without their respiration less carbon dioxide is recycled into the atmosphere. 
B) The carbon dioxide used by the plants for cellular respiration would all be released into the atmosphere at once. 
C) Trees naturally die and decompose, but when turned into lumber their carbon is prevented from recycling back to the atmosphere. 
D) In the absence of forest plants, there would be less carbon dioxide removed from the atmosphere for use during photosynthesis.

Question 17

Global levels of carbon dioxide have risen dramatically in the past 200 years.

Accepted Answer

A) True 
 B)False

Question 18

Because wetlands have relatively little economic value, the percentage of the United States that is covered by wetlands has been relatively stable during the past 200 years.

Accepted Answer

A) True 
 B)False

Question 19

The cutting and burning of forests has led to an increase in global ____________________ levels.

Accepted Answer

The answer of The cutting and burning of forests has...

Question 20

The release of chlorofluorocarbons (CFCs)into the atmosphere has caused a(n)

Accepted Answer

A) increase in the amount of usable nitrogen. 
B) decrease in the amount of ultraviolet light reaching Earth. 
C) increase in acid rainfall. 
D) decrease in Earth's ozone layer. 
A) increase in the amount of usable nitrogen. 
B) decrease in the amount of ultraviolet light reaching Earth. 
C) increase in acid rainfall. 
D) decrease in Earth's ozone layer.

Exam 25: Global Change

The highest concentrations of environmental pollutants are typically found in the predators at the top of the food web.

The conversion of N₂ to NH₄⁺ is called ____________________.

Net primary productivity is typically limited by the amount of nitrogen and phosphorus available to producers; when these nutrients are increased, NPP increases as well.

What characteristics would you expect to find in species that will most likely prosper as projected climate change occurs?

Having a sustainable impact on the Earth and our biosphere means that we must

Why do synthetic chemicals and metals tend to bioaccumulate so readily?

Bisphenol A is found in plastic water bottles and has been shown to cause an increased risk of diabetes and reproductive problems among other disorders. Bisphenol A acts as a(n)____________________.

The addition of carbon dioxide to the atmosphere also increases the amount of carbon dioxide dissolved in ocean water. This has the effect of

Nitrogen gas makes up approximately 20 percent of the air we breathe.

About _____ percent of the human population lives near the coast. This makes the coasts _____.

As a group, the ____________________ gases allow light energy to pass through the atmosphere but absorb heat energy as it passes through the atmosphere to outer space.

Ample evidence now exists to show that worldwide environmental changes are occurring; one example is the

When nitrogen is added to nitrogen-poor aquatic ecosystems, productivity _____ and the number of species _____.

Due to the reduction in pack ice-an effect of global warming-polar bears are eating more geese and goose eggs instead of seals.

Intentionally supplementing nitrogen into a monoculture like a cornfield has predictable and desirable results. Is the same true when added to a system as complex as a community?

What best describes the relationship between cutting down forests and changes in atmospheric carbon dioxide levels?

Global levels of carbon dioxide have risen dramatically in the past 200 years.

Because wetlands have relatively little economic value, the percentage of the United States that is covered by wetlands has been relatively stable during the past 200 years.

The cutting and burning of forests has led to an increase in global ____________________ levels.

The release of chlorofluorocarbons (CFCs)into the atmosphere has caused a(n)

The Nature of Science and the Characteristics of Life

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photosynthesis and Cellular Respiration

Cell Division

Stem Cells, Cancer, and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

Dna and Genes

From Gene to Protein

Dna Technology

How Evolution Works

Evolution of Populations

Speciation and the Origins of Biological Diversity

The Evolutionary History of Life

The Biosphere

Growth of Populations

Ecological Communities

Ecosystems

Internal Organization and Homeostasis

Nutrition and Digestion

Circulation and Gas Exchange

Animal Hormones

Nervous and Sensory Systems

Skeletons, Muscles, and Movement

Defenses Against Disease

Reproduction and Development

Animal Behavior

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

Filters

About _ percent of the human population lives near the coast. This makes the coasts _.

When nitrogen is added to nitrogen-poor aquatic ecosystems, productivity _ and the number of species _.