Question 1

The level of threat posed by a particular substance is determined by

Accepted Answer

A)  laboratory investigations. 
B)  epidemiology. 
C)  case studies. 
D)  computer simulations. 
E)  all of these answers 
A)  laboratory investigations. 
B)  epidemiology. 
C)  case studies. 
D)  computer simulations. 
E)  all of these answers

Question 2

All chemicals in commercial use were screened for toxicity before they were accepted for use.

Accepted Answer

A) True 
 B)False

Question 3

What does this age structure diagram imply about the economic productivity of this country?

Accepted Answer

The male and female age groups hardest h

Question 4

Influenza is the biggest bacterial killer.

Accepted Answer

A) True 
 B)False

Question 5

Which of the following choices makes the statement false? Bacteria

Accepted Answer

A)  can develop resistance to antibiotics. 
B)  can transfer plasmids between species. 
C)  have a low reproductive rate. 
D)  are highly adaptable species. 
E)  have a high reproductive rate. 
A)  can develop resistance to antibiotics. 
B)  can transfer plasmids between species. 
C)  have a low reproductive rate. 
D)  are highly adaptable species. 
E)  have a high reproductive rate.

Question 6

Case reports,epidemiological studies,and animal testing can all be used to estimate toxicity.

Accepted Answer

A) True 
 B)False

Question 7

The three types of toxic chemicals are mutagens,teratogens,and carcinogens.

Accepted Answer

A) True 
 B)False

Question 8

The principal types of chemical hazards include all of the following except

Accepted Answer

A)  carcinogens. 
B)  mutagens. 
C)  teratogens. 
D)  zymogens. 
E)  toxic and hazardous substances. 
A)  carcinogens. 
B)  mutagens. 
C)  teratogens. 
D)  zymogens. 
E)  toxic and hazardous substances.

Question 9

The uncertainties inherent in toxicity tests suggest to many people that they should place increasing emphasis on

Accepted Answer

A)  risk assessment. 
B)  pollution treatment strategies. 
C)  pollution prevention strategies. 
D)  efficiency. 
E)  individual choice. 
A)  risk assessment. 
B)  pollution treatment strategies. 
C)  pollution prevention strategies. 
D)  efficiency. 
E)  individual choice.

Question 10

At low toxin dosages,scientist often choose the no-threshold dose response model.

Accepted Answer

A) True 
 B)False

Question 11

Resistance to bacterial infections are increasing due to all but

Accepted Answer

A)  antibiotic overuse in people and livestock. 
B)  use of antibacterial soaps. 
C)  bacterial reproduction and natural selection. 
D)  medical substitutes for antibiotics in the marketplace. 
E)  overuse of prescribed antibiotics by doctors. 
A)  antibiotic overuse in people and livestock. 
B)  use of antibacterial soaps. 
C)  bacterial reproduction and natural selection. 
D)  medical substitutes for antibiotics in the marketplace. 
E)  overuse of prescribed antibiotics by doctors.

Question 12

____________________ is the process of deciding how and at what cost to reduce a particular risk.

Accepted Answer

The answer of ____________________ is the process of deciding how...

Question 13

You would predict that a bioaccumulating hormonally active agent would most affect a

Accepted Answer

A)  producer. 
B)  primary consumer. 
C)  secondary consumer. 
D)  tertiary consumer. 
E)  secondary producer. 
A)  producer. 
B)  primary consumer. 
C)  secondary consumer. 
D)  tertiary consumer. 
E)  secondary producer.

Question 14

An immediate allergic reaction to a bee sting would be a(n)____________________ reaction to a toxin.

Accepted Answer

The answer of An immediate allergic reaction to a bee...

Question 15

Teratogens

Accepted Answer

A)  are fatal to humans in low doses. 
B)  cause birth defects. 
C)  are harmful because they are flammable, explosive, and irritating to skin or lungs, or because they cause allergic reactions. 
D)  cause mutations. 
E)  cause allergic reactions. 
A)  are fatal to humans in low doses. 
B)  cause birth defects. 
C)  are harmful because they are flammable, explosive, and irritating to skin or lungs, or because they cause allergic reactions. 
D)  cause mutations. 
E)  cause allergic reactions.

Question 16

Malaria cannot be transmitted by blood transfusions or by sharing needles.

Accepted Answer

A) True 
 B)False

Question 17

Which of the following is not a major pathway to infectious diseases in humans?

Accepted Answer

A)  Pets 
B)  Mosquitoes 
C)  Food 
D)  Through the mother to her fetus 
E)  Heating ventilation and air conditioning (HVA
C)  systems 
A)  Pets 
B)  Mosquitoes 
C)  Food 
D)  Through the mother to her fetus 
E)  Heating ventilation and air conditioning (HVA
C)  systems

Question 18

The intake of synthetic "hormone copycats" can severely disrupt the

Accepted Answer

A)  digestive system. 
B)  endocrine system. 
C)  circulatory system. 
D)  respiratory system. 
E)  excretory system. 
A)  digestive system. 
B)  endocrine system. 
C)  circulatory system. 
D)  respiratory system. 
E)  excretory system.

Question 19

____________________ are used to show the effects of various dosages of a toxic substance on test organisms.

Accepted Answer

The answer of ____________________ are used to show the effects...

Question 20

People tend to evaluate risks by all but which of the following?

Accepted Answer

A)  Fear of the unknown 
B)  Degree of personal control 
C)  Whether the risk is chronic or catastrophic 
D)  The outcome 
E)  Level of gratification gained by taking the risk 
A)  Fear of the unknown 
B)  Degree of personal control 
C)  Whether the risk is chronic or catastrophic 
D)  The outcome 
E)  Level of gratification gained by taking the risk

The level of threat posed by a particular substance is determined by

All chemicals in commercial use were screened for toxicity before they were accepted for use.

What does this age structure diagram imply about the economic productivity of this country?

Influenza is the biggest bacterial killer.

Which of the following choices makes the statement false? Bacteria

Case reports,epidemiological studies,and animal testing can all be used to estimate toxicity.

The three types of toxic chemicals are mutagens,teratogens,and carcinogens.

The principal types of chemical hazards include all of the following except

The uncertainties inherent in toxicity tests suggest to many people that they should place increasing emphasis on

At low toxin dosages,scientist often choose the no-threshold dose response model.

Resistance to bacterial infections are increasing due to all but

____________________ is the process of deciding how and at what cost to reduce a particular risk.

You would predict that a bioaccumulating hormonally active agent would most affect a

An immediate allergic reaction to a bee sting would be a(n)____________________ reaction to a toxin.

Teratogens

Malaria cannot be transmitted by blood transfusions or by sharing needles.

Which of the following is not a major pathway to infectious diseases in humans?

The intake of synthetic "hormone copycats" can severely disrupt the

____________________ are used to show the effects of various dosages of a toxic substance on test organisms.

People tend to evaluate risks by all but which of the following?

Environmental Problems, Their Causes, and Sustainability

Science, Matter, Energy, and Systems

Biodiversity and Evolution

Community Ecology, Population Ecology, and the Human Population

Sustaining Biodiversity: The Species Approach

Sustaining Biodiversity: The Ecosystem Approach

Food,Soil,and Pest Management

Water Resources and Water Pollution

Nonrenewable Energy Resources

Energy Efficiency and Renewable Energy

Air Pollution, Climate Change, and Ozone Depletion

Urbanization and Solid and Hazardous Waste

Economics, Politics, Worldviews, and Sustainability

Filters

Exam 11: Environmental Hazards and Human Health

The level of threat posed by a particular substance is determined by

All chemicals in commercial use were screened for toxicity before they were accepted for use.

What does this age structure diagram imply about the economic productivity of this country?

Influenza is the biggest bacterial killer.

Which of the following choices makes the statement false? Bacteria

Case reports,epidemiological studies,and animal testing can all be used to estimate toxicity.

The three types of toxic chemicals are mutagens,teratogens,and carcinogens.

The principal types of chemical hazards include all of the following except

The uncertainties inherent in toxicity tests suggest to many people that they should place increasing emphasis on

At low toxin dosages,scientist often choose the no-threshold dose response model.

Resistance to bacterial infections are increasing due to all but

____________________ is the process of deciding how and at what cost to reduce a particular risk.

You would predict that a bioaccumulating hormonally active agent would most affect a

An immediate allergic reaction to a bee sting would be a(n)____________________ reaction to a toxin.

Teratogens

Malaria cannot be transmitted by blood transfusions or by sharing needles.

Which of the following is not a major pathway to infectious diseases in humans?

The intake of synthetic "hormone copycats" can severely disrupt the

____________________ are used to show the effects of various dosages of a toxic substance on test organisms.

People tend to evaluate risks by all but which of the following?

Environmental Problems, Their Causes, and Sustainability

Science, Matter, Energy, and Systems

Biodiversity and Evolution

Community Ecology, Population Ecology, and the Human Population

Sustaining Biodiversity: The Species Approach

Sustaining Biodiversity: The Ecosystem Approach

Food,Soil,and Pest Management

Water Resources and Water Pollution

Nonrenewable Energy Resources

Energy Efficiency and Renewable Energy

Air Pollution, Climate Change, and Ozone Depletion

Urbanization and Solid and Hazardous Waste

Economics, Politics, Worldviews, and Sustainability

Filters