Question 1

Although the threat of infectious diseases has decreased,human health is still threatened by pesticide-resistant insects and antibiotic-resistant bacteria.

Accepted Answer

A) True 
 B)False

Question 2

What type of exposure would have been experienced by a person who received a lifetime of background radiation from a low-level radioactive dump site?

Accepted Answer

A)  a subacute exposure to radioactive substances 
B)  a chronic exposure to radioactive substances 
C)  a subchronic exposure to radioactive substances 
D)  an acute exposure to radioactive substances 
A)  a subacute exposure to radioactive substances 
B)  a chronic exposure to radioactive substances 
C)  a subchronic exposure to radioactive substances 
D)  an acute exposure to radioactive substances

Question 3

The ____________________ is a complex network of glands that release hormones into the bloodstream.

Accepted Answer

The answer of The ____________________ is a complex network of...

Question 4

What led to a sharp decrease in the spread of malaria?

Accepted Answer

A)  the use of herbicides 
B)  the spraying of breeding areas with DDT and other pesticides 
C)  the creation of a vaccine 
D)  administering a solution of boiled water, salt, and sugar or rice 
A)  the use of herbicides 
B)  the spraying of breeding areas with DDT and other pesticides 
C)  the creation of a vaccine 
D)  administering a solution of boiled water, salt, and sugar or rice

Question 5

What would be most effective for improving healthcare in developing countries?

Accepted Answer

A)  implementing better cooking technology 
B)  implementing better exercise programs 
C)  immunizing people against the measles 
D)  implementing oral rehydration therapy 
A)  implementing better cooking technology 
B)  implementing better exercise programs 
C)  immunizing people against the measles 
D)  implementing oral rehydration therapy

Question 6

The three most pervasive viral diseases are influenza,hepatitis B,and SARS.

Accepted Answer

A) True 
 B)False

Question 7

Which pricing approach is being used if a further tax is added to the price of a pack of cigarettes?

Accepted Answer

A)  externalizing internal costs approach 
B)  full-cost pricing approach 
C)  user-pays approach 
D)  life-cycle cost pricing approach 
A)  externalizing internal costs approach 
B)  full-cost pricing approach 
C)  user-pays approach 
D)  life-cycle cost pricing approach

Question 8

What is metastasis?

Accepted Answer

A)  the process of dying from cancer 
B)  the result of coming into contact with a carcinogen 
C)  the surgical removal of a tumour 
D)  when malignant cells break off from tumours to other parts of the body 
A)  the process of dying from cancer 
B)  the result of coming into contact with a carcinogen 
C)  the surgical removal of a tumour 
D)  when malignant cells break off from tumours to other parts of the body

Question 9

Which organism spreads malaria?

Accepted Answer

A)  flies 
B)  worms 
C)  mosquitoes 
D)  snails 
A)  flies 
B)  worms 
C)  mosquitoes 
D)  snails

Question 10

The widespread use of vaccines could improve human health and decrease death rates more than any other type of effort.

Accepted Answer

A) True 
 B)False

Question 11

What are some activities that have led to antibiotic resistance?

Accepted Answer

overuse of antibioti

Question 12

What is a characteristic of teratogens?

Accepted Answer

A)  They are harmful because they are irritating to skin or lungs. 
B)  They cause birth defects. 
C)  They cause mutations. 
D)  They are fatal to humans in low doses. 
A)  They are harmful because they are irritating to skin or lungs. 
B)  They cause birth defects. 
C)  They cause mutations. 
D)  They are fatal to humans in low doses.

Question 13

AIDS
  
-At which age are females more likely to die from AIDS than males?

Accepted Answer

The answer of AIDS
  
-At which age are females...

Question 14

A(n)______________________________ can be spread by air,water,food,body fluids,and some vectors.

Accepted Answer

transmissi

Question 15

What is used to generate dose-response curves?

Accepted Answer

A)  epidemiological studies comparing animal responses to various doses 
B)  laboratory studies comparing experimental and control groups of test animals 
C)  field studies with groups of test subjects 
D)  computer models comparing different groups of people 
A)  epidemiological studies comparing animal responses to various doses 
B)  laboratory studies comparing experimental and control groups of test animals 
C)  field studies with groups of test subjects 
D)  computer models comparing different groups of people

Question 16

What would people most likely have experienced if they flew over the Chernobyl site two days after the explosion?

Accepted Answer

A)  an acute exposure to radioactive substances 
B)  a subchronic exposure to radioactive substances 
C)  a subacute exposure to radioactive substances 
D)  a chronic exposure to radioactive substances 
A)  an acute exposure to radioactive substances 
B)  a subchronic exposure to radioactive substances 
C)  a subacute exposure to radioactive substances 
D)  a chronic exposure to radioactive substances

Question 17

What is a characteristic of mutagens?

Accepted Answer

A)  They cause mutations. 
B)  They are harmful because they are flammable, explosive, irritating to skin or lungs, or cause allergic reactions. 
C)  They are fatal to humans in low doses. 
D)  They cause physical deformities. 
A)  They cause mutations. 
B)  They are harmful because they are flammable, explosive, irritating to skin or lungs, or cause allergic reactions. 
C)  They are fatal to humans in low doses. 
D)  They cause physical deformities.

Question 18

The ________________________________________ of the human immunodeficiency virus makes the virus hard to detect and makes it easy for the virus to spread.

Accepted Answer

long incub

Question 19

What presents the greatest risk to humans,in terms of the number of deaths per year and reduced life span?

Accepted Answer

A)  poverty 
B)  TB 
C)  unhealthy life choices 
D)  cultural hazards 
A)  poverty 
B)  TB 
C)  unhealthy life choices 
D)  cultural hazards

Question 20

AIDS
  
-At which age are males more likely to die from AIDS than females?

Accepted Answer

The answer of AIDS
  
-At which age are males...

Exam 19: Risk,toxicology,and Human Health

Although the threat of infectious diseases has decreased,human health is still threatened by pesticide-resistant insects and antibiotic-resistant bacteria.

What type of exposure would have been experienced by a person who received a lifetime of background radiation from a low-level radioactive dump site?

The ____________________ is a complex network of glands that release hormones into the bloodstream.

What led to a sharp decrease in the spread of malaria?

What would be most effective for improving healthcare in developing countries?

The three most pervasive viral diseases are influenza,hepatitis B,and SARS.

Which pricing approach is being used if a further tax is added to the price of a pack of cigarettes?

What is metastasis?

Which organism spreads malaria?

The widespread use of vaccines could improve human health and decrease death rates more than any other type of effort.

What are some activities that have led to antibiotic resistance?

What is a characteristic of teratogens?

AIDS -At which age are females more likely to die from AIDS than males?

A(n)______________________________ can be spread by air,water,food,body fluids,and some vectors.

What is used to generate dose-response curves?

What would people most likely have experienced if they flew over the Chernobyl site two days after the explosion?

What is a characteristic of mutagens?

The ________________________________________ of the human immunodeficiency virus makes the virus hard to detect and makes it easy for the virus to spread.

What presents the greatest risk to humans,in terms of the number of deaths per year and reduced life span?

AIDS -At which age are males more likely to die from AIDS than females?

Environmental Problems: an Introduction and Overview

Environmental History: Learning From the Past

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Ecosystems: What Are They, and How Do They Work

Evolution and Biodiversity

Climate and Terrestrial Biodiversity

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Applying Population Ecology: the Human Population

Sustaining Terrestrial Biodiversity: Managing and Protecting Ecosystems

Sustaining Biodiversity: the Species Approach

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Food and Soil Resources

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Geology and Nonrenewable Mineral Resources

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