Question 1

Atmospheric carbon dioxide levels are increasing because

Accepted Answer

A)  human agriculture has greatly increased the amount of carbon dioxide given off by plants during respiration. 
B)  human activities have begun to release carbon that was formerly sequestered in fossil fuels into the atmosphere. 
C)  holes in the ozone layer have reduced the total amount of photosynthesis occurring in the biosphere. 
D)  the huge growth of the human population and the domestic livestock population has increased the amount of carbon dioxide being released through respiration. 
A)  human agriculture has greatly increased the amount of carbon dioxide given off by plants during respiration. 
B)  human activities have begun to release carbon that was formerly sequestered in fossil fuels into the atmosphere. 
C)  holes in the ozone layer have reduced the total amount of photosynthesis occurring in the biosphere. 
D)  the huge growth of the human population and the domestic livestock population has increased the amount of carbon dioxide being released through respiration.

Question 2

Plants remove carbon dioxide from the atmosphere through the process of ________.

Accepted Answer

The answer of Plants remove carbon dioxide from the atmosphere...

Question 3

Bisphenol A,a chemical found in plastic water bottles,has been shown to increase the risk of diabetes and reproductive problems,among other disorders.Bisphenol A is a(n)________.

Accepted Answer

The answer of Bisphenol A,a chemical found in plastic water...

Question 4

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

Question 5

Changes to Earth's physical and biotic features are called land and water transformations.Which of the following human activities is an example of a water transformation?

Accepted Answer

A)  clearing land along an urban growth boundary to enable a city to expand 
B)  constructing a dam along a river so that an expanding city may increase the availability of drinking water 
C)  clear-cutting a forest for the lumber needed to build houses for an expanding city 
D)  clear-cutting a forest to make cropland to grow food for an expanding city 
A)  clearing land along an urban growth boundary to enable a city to expand 
B)  constructing a dam along a river so that an expanding city may increase the availability of drinking water 
C)  clear-cutting a forest for the lumber needed to build houses for an expanding city 
D)  clear-cutting a forest to make cropland to grow food for an expanding city

Question 6

A shift in the geographic range of a species due to global changes has caused the blindness that is now threatening cheetahs in Africa.

Accepted Answer

A) True 
 B)False

Question 7

Pikas,shown in the photograph,are adapted to mountainous environments.How are species such as pikas changing their habitats in response to global warming?

Accepted Answer

A)  They are moving northward toward the Arctic. 
B)  They are moving their ranges up the mountains to cooler habitats. 
C)  They are inhabiting areas that are closer to cool mountain lakes. 
D)  They are inhabiting areas that are adjacent to mountain glaciers. 
A)  They are moving northward toward the Arctic. 
B)  They are moving their ranges up the mountains to cooler habitats. 
C)  They are inhabiting areas that are closer to cool mountain lakes. 
D)  They are inhabiting areas that are adjacent to mountain glaciers.

Question 8

Gases that enable light energy to pass through the atmosphere into outer space but that trap heat energy on Earth are known as ________ gases.

Accepted Answer

The answer of Gases that enable light energy to pass...

Question 9

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 10

An increase in POP concentrations in higher trophic levels is the result of

Accepted Answer

A)  biomagnification. 
B)  bioaccumulation. 
C)  bioacidification. 
D)  biodegradation. 
A)  biomagnification. 
B)  bioaccumulation. 
C)  bioacidification. 
D)  biodegradation.

Question 11

When most plants are initially exposed to elevated carbon dioxide levels,they will increase their rate of photosynthesis and grow more rapidly;however,some plants will drop their growth rates over time.A possible result of this phenomenon might be that plants with lower growth rates will

Accepted Answer

A)  have an increased NPP. 
B)  be outcompeted by faster-growing species. 
C)  no longer play a role in the nitrogen cycle. 
D)  no longer require carbon. 
A)  have an increased NPP. 
B)  be outcompeted by faster-growing species. 
C)  no longer play a role in the nitrogen cycle. 
D)  no longer require carbon.

Question 12

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

Accepted Answer

A) True 
 B)False

Question 13

Increased agricultural productivity in the northern latitudes is expected to be a consequence of global warming because

Accepted Answer

A)  the increased temperatures will lead to a longer growing season. 
B)  cold-tolerant plants will adapt to become hardier. 
C)  soil acidification will occur in those areas. 
D)  agricultural productivity increases are predicted for all latitudes. 
A)  the increased temperatures will lead to a longer growing season. 
B)  cold-tolerant plants will adapt to become hardier. 
C)  soil acidification will occur in those areas. 
D)  agricultural productivity increases are predicted for all latitudes.

Exam 25: Global Change

Atmospheric carbon dioxide levels are increasing because

Plants remove carbon dioxide from the atmosphere through the process of ________.

Bisphenol A,a chemical found in plastic water bottles,has been shown to increase the risk of diabetes and reproductive problems,among other disorders.Bisphenol A is a(n)________.

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

Changes to Earth's physical and biotic features are called land and water transformations.Which of the following human activities is an example of a water transformation?

A shift in the geographic range of a species due to global changes has caused the blindness that is now threatening cheetahs in Africa.

Pikas,shown in the photograph,are adapted to mountainous environments.How are species such as pikas changing their habitats in response to global warming?

Gases that enable light energy to pass through the atmosphere into outer space but that trap heat energy on Earth are known as ________ gases.

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

An increase in POP concentrations in higher trophic levels is the result of

When most plants are initially exposed to elevated carbon dioxide levels,they will increase their rate of photosynthesis and grow more rapidly;however,some plants will drop their growth rates over time.A possible result of this phenomenon might be that plants with lower growth rates will

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

Increased agricultural productivity in the northern latitudes is expected to be a consequence of global warming because

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

Photosynthesis 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

Internal Organization and Homeostasis

Nutrition and Digestion

Circulation and Gas Exchange

Animal Hormones

Nervous and Sensory Systems

Skeletons,Muscles,and Movement

The Immune System

Reproduction and Development

Plant Structure, Nutrition, and Transport

Plant Growth and Reproduction

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