Question 1

Which statement about chlorofluorocarbons is FALSE?

Accepted Answer

A)  They can destroy ozone. 
B)  They are odorless. 
C)  They are a greenhouse gas. 
D)  They break down very slowly. 
E)  Their action is allowing more UV radiation through the atmosphere. 
A)  They can destroy ozone. 
B)  They are odorless. 
C)  They are a greenhouse gas. 
D)  They break down very slowly. 
E)  Their action is allowing more UV radiation through the atmosphere.

Question 2

Which of the following is the least direct cause of the current extinction crisis?

Accepted Answer

A)  Hunting 
B)  Warming temperatures 
C)  Overharvesting 
D)  Habitat degradation 
E)  Habitat fragmentation 
A)  Hunting 
B)  Warming temperatures 
C)  Overharvesting 
D)  Habitat degradation 
E)  Habitat fragmentation

Question 3

The hole in the ozone layer is most dramatic over ____.

Accepted Answer

A)  Antarctica 
B)  North America 
C)  Asia 
D)  Europe 
E)  Africa 
A)  Antarctica 
B)  North America 
C)  Asia 
D)  Europe 
E)  Africa

Question 4

Choose the one most appropriate answer for each.
-Extinct species

Accepted Answer

A) Species that remains restricted to the area where it evolved 
B) Species that fail to turn up signs of any individuals after repeated, extensive surveys of its known range 
C) New method of harvesting trees to preserve diversity 
D) Field of biology that documents biodiversity, and seeks way to maintain it to ensure our survival 
E) Species vulnerable to extinction
F)Work designed to renew or recreate a natural system that has been degraded or destroyed
G)Places that have species found nowhere else and are under great threat of destruction
H)Species likely to become endangered in the near future
I)Chemical pollutant becomes increasingly concentrated as it moves up through food chains
J)Narrow corridor of vegetation along a stream or river
K)An organism builds up increasing amounts of a chemical pollutant it its tissues over time 
A) Species that remains restricted to the area where it evolved 
B) Species that fail to turn up signs of any individuals after repeated, extensive surveys of its known range 
C) New method of harvesting trees to preserve diversity 
D) Field of biology that documents biodiversity, and seeks way to maintain it to ensure our survival 
E) Species vulnerable to extinction
F)Work designed to renew or recreate a natural system that has been degraded or destroyed
G)Places that have species found nowhere else and are under great threat of destruction
H)Species likely to become endangered in the near future
I)Chemical pollutant becomes increasingly concentrated as it moves up through food chains
J)Narrow corridor of vegetation along a stream or river
K)An organism builds up increasing amounts of a chemical pollutant it its tissues over time

Question 5

By the process of __________,an organism's tissues store a pollutant taken up from the environment,causing the amount in the body to increase over time.

Accepted Answer

The answer of By the process of __________,an organism's tissues...

Question 6

Due to ____,trophic level affects the pollutant concentration in an organism's tissues.

Accepted Answer

A)  bioaccumulation 
B)  biological magnification 
C)  ecosystem degradation 
D)  the ozone layer 
E)  ground-level ozone 
A)  bioaccumulation 
B)  biological magnification 
C)  ecosystem degradation 
D)  the ozone layer 
E)  ground-level ozone

Question 7

Answer the following questions in reference to the four geologic periods listed below.
-The greatest mass extinction event where 90 to 95 percent of all species were lost

Accepted Answer

A) Cretaceous 
B) Anthropocene 
C) Devonian 
D) Permian 
A) Cretaceous 
B) Anthropocene 
C) Devonian 
D) Permian

Question 8

How many mass extinctions mark the boundaries for geologic time periods?

Accepted Answer

A)  One 
B)  Three 
C)  Five 
D)  Eight 
E)  Twelve 
A)  One 
B)  Three 
C)  Five 
D)  Eight 
E)  Twelve

Question 9

Which of the following conditions rise as a consequence of a thinning ozone layer?

Accepted Answer

A)  Increased global temperature 
B)  Increased rain 
C)  Stronger wind 
D)  Air pollution 
E)  Increased rate of skin cancer 
A)  Increased global temperature 
B)  Increased rain 
C)  Stronger wind 
D)  Air pollution 
E)  Increased rate of skin cancer

Question 10

What encourages flooding by allowing water to run off into streams?

Accepted Answer

A)  Acid rain 
B)  Deforestation 
C)  Desertification 
D)  Bioaccumulation 
E)  Biological magnification 
A)  Acid rain 
B)  Deforestation 
C)  Desertification 
D)  Bioaccumulation 
E)  Biological magnification

Question 11

Changes in temperature affect organisms in temperate climates by altering the following,EXCEPT

Accepted Answer

A)  animal migration times. 
B)  breeding seasons. 
C)  coral reef building. 
D)  leaf budding time. 
E)  flowering times. 
A)  animal migration times. 
B)  breeding seasons. 
C)  coral reef building. 
D)  leaf budding time. 
E)  flowering times.

Question 12

What do aquatic groups ranging from foraminifera,to corals,to bivalve mollusks require in order to build their hard parts?

Accepted Answer

A)  Oxalic acid 
B)  Potassium carbonate 
C)  Protein 
D)  Calcium carbonate 
E)  Iron oxide 
A)  Oxalic acid 
B)  Potassium carbonate 
C)  Protein 
D)  Calcium carbonate 
E)  Iron oxide

Question 13

____ strips an area of vegetation and soil,creating an ecological dead zone.

Accepted Answer

A)  Biological magnification 
B)  Renewable energy 
C)  Ecological restoration 
D)  Ground mining 
E)  Surface mining 
A)  Biological magnification 
B)  Renewable energy 
C)  Ecological restoration 
D)  Ground mining 
E)  Surface mining

Question 14

Which of the following areas is still seeing an increase in deforestation?

Accepted Answer

A)  United States 
B)  Europe 
C)  China 
D)  Brazil 
E)  Canada 
A)  United States 
B)  Europe 
C)  China 
D)  Brazil 
E)  Canada

Question 15

Answer the following questions in reference to the four geologic periods listed below.
-Volcanic activity in what is now Siberia released a large amount of carbon into the atmosphere causing extinctions.

Accepted Answer

A) Cretaceous 
B) Anthropocene 
C) Devonian 
D) Permian 
A) Cretaceous 
B) Anthropocene 
C) Devonian 
D) Permian

Question 16

Endemic means a species ____.

Accepted Answer

A)  evolved in one geographic region and lives nowhere else 
B)  is on its way to extinction 
C)  feeds only on one type of food 
D)  is extinct in the wild 
E)  is completely extinct 
A)  evolved in one geographic region and lives nowhere else 
B)  is on its way to extinction 
C)  feeds only on one type of food 
D)  is extinct in the wild 
E)  is completely extinct

Question 17

Habitats with the most species in greatest danger of extinction,which can be found in tropical developing countries as well as the coasts of the United States,are called ____.

Accepted Answer

A)  ecoregions 
B)  island habitats 
C)  riparian zones 
D)  biodiversity hot spots 
E)  conservation islands 
A)  ecoregions 
B)  island habitats 
C)  riparian zones 
D)  biodiversity hot spots 
E)  conservation islands

Question 18

The best way to prevent desertification is to avoid farming in areas that are subject to high ______and periodic __________.

Accepted Answer

The answer of The best way to prevent desertification is...

Question 19

Ozone thinning over Antarctica was so profound that people referred to the lowest ozone region as the _________________.

Accepted Answer

A)  ozone pollution layer 
B)  greenhouse effect 
C)  near-ground ozone 
D)  radiation zone 
E)  ozone hole 
A)  ozone pollution layer 
B)  greenhouse effect 
C)  near-ground ozone 
D)  radiation zone 
E)  ozone hole

Question 20

Sometimes,the decline of one species threatens the survival of another species.Which scenario is an example of this?

Accepted Answer

A)  Declines in polar bears result in diminished prey populations 
B)  The arrival of sailors on Mauritius island led to the extinction of dodo birds 
C)  Declines in eagle populations due to the accumulation of pollutants in their eggs 
D)  Decline in buffalo caused a drop in native buffalo clover 
E)  Pollution led to declines in the Texas blink salamander population 
A)  Declines in polar bears result in diminished prey populations 
B)  The arrival of sailors on Mauritius island led to the extinction of dodo birds 
C)  Declines in eagle populations due to the accumulation of pollutants in their eggs 
D)  Decline in buffalo caused a drop in native buffalo clover 
E)  Pollution led to declines in the Texas blink salamander population

Exam 48: Human Impacts on the Biosphere

Which statement about chlorofluorocarbons is FALSE?

Which of the following is the least direct cause of the current extinction crisis?

The hole in the ozone layer is most dramatic over ____.

Choose the one most appropriate answer for each. -Extinct species

By the process of __________,an organism's tissues store a pollutant taken up from the environment,causing the amount in the body to increase over time.

Due to ____,trophic level affects the pollutant concentration in an organism's tissues.

Answer the following questions in reference to the four geologic periods listed below. -The greatest mass extinction event where 90 to 95 percent of all species were lost

How many mass extinctions mark the boundaries for geologic time periods?

Which of the following conditions rise as a consequence of a thinning ozone layer?

What encourages flooding by allowing water to run off into streams?

Changes in temperature affect organisms in temperate climates by altering the following,EXCEPT

What do aquatic groups ranging from foraminifera,to corals,to bivalve mollusks require in order to build their hard parts?

____ strips an area of vegetation and soil,creating an ecological dead zone.

Which of the following areas is still seeing an increase in deforestation?

Answer the following questions in reference to the four geologic periods listed below. -Volcanic activity in what is now Siberia released a large amount of carbon into the atmosphere causing extinctions.

Endemic means a species ____.

Habitats with the most species in greatest danger of extinction,which can be found in tropical developing countries as well as the coasts of the United States,are called ____.

The best way to prevent desertification is to avoid farming in areas that are subject to high ______and periodic __________.

Ozone thinning over Antarctica was so profound that people referred to the lowest ozone region as the _________________.

Sometimes,the decline of one species threatens the survival of another species.Which scenario is an example of this?

Invitation to Biology

Life's Chemical Bases

Molecules of Life

Cell Structure

Ground Rules of Metabolism

Where it Starts—Photosynthesis

How Cells Release Chemical Energy

DNA Structure and Function

From DNA to Protein

Control of Gene Expression

How Cells Reproduce

Meiosis and Sexual Reproduction

Observing Patterns in Inherited Traits

Chromosomes and Human Inheritance

Studying and Manipulating Genomes

Evidence of Evolution

Processes of Evolution

Organizing Information about Species

Life's Origin and Early Evolution

Viruses, Bacteria, and Archaea

Protists: The Simplest Eukaryotes

The Land Plants

Fungi

Animal Evolution: The Invertebrates

Animal Evolution: The Chordates

Human Evolution

Plant Tissues

Plant Nutrition and Transport

Life Cycles of Flowering Plants

Communication Strategies in Plants

Animal Tissues and Organ Systems

Neural Control

Sensory Perception

Endocrine Control

Structural Support and Movement

Circulation

Immunity

Respiration

Digestion and Nutrition

Maintaining the Internal Environment

Animal Reproductive System

Animal Development

Animal Behavior

Population Ecology

Community Ecology

Ecosystems

The Biosphere

Filters

The best way to prevent desertification is to avoid farming in areas that are subject to high and periodic ____.