Question 1

The example of cheetahs blinded by thorny plants indicates that the effects of chemical cycle disruption

Accepted Answer

A)  produce a chain reaction of results that cannot always be predicted. 
B)  can all be predicted by ecologists who are experts in their field. 
C)  are very limited and probably won't affect humans. 
D)  will not be observed for decades. 
A)  produce a chain reaction of results that cannot always be predicted. 
B)  can all be predicted by ecologists who are experts in their field. 
C)  are very limited and probably won't affect humans. 
D)  will not be observed for decades.

Question 2

Atmospheric scientists anticipate a 1.1-6.4°C temperature increase by the end of the twenty-first century.What impacts would this change bring?

Accepted Answer

A)  Some plant and animal species will migrate to cooler locations, whereas others will become extinct. 
B)  Increases in ocean evaporation and terrestrial rainfall will have a positive impact on the world's agricultural systems. 
C)  The frequency of severe weather will decrease. 
D)  The polar ice caps will increase in size. 
A)  Some plant and animal species will migrate to cooler locations, whereas others will become extinct. 
B)  Increases in ocean evaporation and terrestrial rainfall will have a positive impact on the world's agricultural systems. 
C)  The frequency of severe weather will decrease. 
D)  The polar ice caps will increase in size.

Question 3

Global warming is causing the frequency of storms and severe weather to increase because the rising temperatures also increase ________ energy.

Accepted Answer

The answer of Global warming is causing the frequency of...

Question 4

Phytoplankton are ecologically important because they

Accepted Answer

A)  are bioindicators of the amount of ice in the polar bear's ecosystem. 
B)  contribute to atmospheric oxygen through photosynthesis. 
C)  absorb acid to prevent ocean acidification. 
D)  are an important source of vitamins for polar bears. 
A)  are bioindicators of the amount of ice in the polar bear's ecosystem. 
B)  contribute to atmospheric oxygen through photosynthesis. 
C)  absorb acid to prevent ocean acidification. 
D)  are an important source of vitamins for polar bears.

Question 5

Humans are particularly adept at water transformation; scientists now estimate that human activities have affected nearly ________ percent of the world's rivers.

Accepted Answer

A)  10 
B)  40 
C)  70 
D)  100 
A)  10 
B)  40 
C)  70 
D)  100

Question 6

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

Accepted Answer

A) True 
 B)False

Question 7

What characteristics would we 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 with 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 with 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 8

Humans use approximately 30 percent of the world's total net primary productivity (NPP).

Accepted Answer

A) True 
 B)False

Question 9

Rainfall patterns around the world have changed because of

Accepted Answer

A)  biomagnification. 
B)  ocean acidification. 
C)  global warming. 
D)  land transformation. 
A)  biomagnification. 
B)  ocean acidification. 
C)  global warming. 
D)  land transformation.

Question 10

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

Accepted Answer

A)  cooling the ocean water by increasing the rate of evaporation. 
B)  warming the ocean water by decreasing the rate of evaporation. 
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. 
B)  warming the ocean water by decreasing the rate of evaporation. 
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 11

Which of the following statements about POPs that have an atmospheric cycle is true?

Accepted Answer

A)  They can have only localized effects. 
B)  They can be spread over large distances. 
C)  They cannot be bioaccumulated. 
D)  They cannot cause water transformations. 
A)  They can have only localized effects. 
B)  They can be spread over large distances. 
C)  They cannot be bioaccumulated. 
D)  They cannot cause water transformations.

Question 12

What will happen in the future if humans continue to impact natural systems at the same rates as today?

Accepted Answer

A)  There will not be any serious consequences, because the environment is much too big and the human population is much too small in comparison. 
B)  Human societies that depend on the services ecosystems provide may experience severe disruptions in those services. 
C)  The environment may experience some short-term changes, but their magnitude will likely be no greater than those that have occurred naturally. 
D)  Some beneficial and necessary reductions in population growth will occur. 
A)  There will not be any serious consequences, because the environment is much too big and the human population is much too small in comparison. 
B)  Human societies that depend on the services ecosystems provide may experience severe disruptions in those services. 
C)  The environment may experience some short-term changes, but their magnitude will likely be no greater than those that have occurred naturally. 
D)  Some beneficial and necessary reductions in population growth will occur.

Question 13

The carbon that is increasing the levels of carbon dioxide in Earth's atmosphere primarily comes from the burning of fossil fuels.

Accepted Answer

A) True 
 B)False

The example of cheetahs blinded by thorny plants indicates that the effects of chemical cycle disruption

Atmospheric scientists anticipate a 1.1-6.4°C temperature increase by the end of the twenty-first century.What impacts would this change bring?

Global warming is causing the frequency of storms and severe weather to increase because the rising temperatures also increase ________ energy.

Phytoplankton are ecologically important because they

Humans are particularly adept at water transformation; scientists now estimate that human activities have affected nearly ________ percent of the world's rivers.

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

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

Humans use approximately 30 percent of the world's total net primary productivity (NPP).

Rainfall patterns around the world have changed because of

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

Which of the following statements about POPs that have an atmospheric cycle is true?

What will happen in the future if humans continue to impact natural systems at the same rates as today?

The carbon that is increasing the levels of carbon dioxide in Earth's atmosphere primarily comes from the burning of fossil fuels.

The Nature of Science and the Characteristics of Life

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photo Synthesis and Cellular Respiration

Cell Division

Cancer and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

DNA and Genes

From Gene to Protein

DNA Technology

How Evolution Works

The Origin of Species

The Evolution of Biodiversity

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Biosphere

Growth of Populations

Animal Behavior

Ecological Communities

Ecosystems

Filters

Exam 25: Global Change

The example of cheetahs blinded by thorny plants indicates that the effects of chemical cycle disruption

Atmospheric scientists anticipate a 1.1-6.4°C temperature increase by the end of the twenty-first century.What impacts would this change bring?

Global warming is causing the frequency of storms and severe weather to increase because the rising temperatures also increase ________ energy.

Phytoplankton are ecologically important because they

Humans are particularly adept at water transformation; scientists now estimate that human activities have affected nearly ________ percent of the world's rivers.

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

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

Humans use approximately 30 percent of the world's total net primary productivity (NPP).

Rainfall patterns around the world have changed because of

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

Which of the following statements about POPs that have an atmospheric cycle is true?

What will happen in the future if humans continue to impact natural systems at the same rates as today?

The carbon that is increasing the levels of carbon dioxide in Earth's atmosphere primarily comes from the burning of fossil fuels.

The Nature of Science and the Characteristics of Life

The Chemistry of Life

Cell Structure and Internal Compartments

Cell Membranes, Transport, and Communication

Energy, Metabolism, and Enzymes

Photo Synthesis and Cellular Respiration

Cell Division

Cancer and Human Health

Patterns of Inheritance

Chromosomes and Human Genetics

DNA and Genes

From Gene to Protein

DNA Technology

How Evolution Works

The Origin of Species

The Evolution of Biodiversity

Biological Diversity, Bacteria, and Archaea

Protista, Plantae, and Fungi

Animalia

The Biosphere

Growth of Populations

Animal Behavior

Ecological Communities

Ecosystems

Filters