Question 1

The immune system has specialized cells and tissues that protect the body against disease and harmful substances by forming ____________________, which are specialized proteins that render invading agents harmless.

Accepted Answer

The answer of The immune system has specialized cells and...

Question 2

On the accompanying graph, explain what the designation LD50 means.

Accepted Answer

The answer of  
On the accompanying graph, explain what...

Question 3

Discuss why estimating risks from technologies is difficult.

Accepted Answer

The answer of Discuss why estimating risks from technologies is...

Question 4

Water bottles can contain ____________________, which is an estrogen mimic that is used as a hardening agent in certain plastics.

Accepted Answer

The answer of Water bottles can contain ____________________, which is...

Question 5

On the accompanying graph, what dose in hypothetical units did it take to kill 25% of the population?

Accepted Answer

The answer of  
On the accompanying graph, what dose...

Question 6

Explain the following statement (quotation at the beginning of Chapter 14) made by the German scientist Paracelsus: "The dose makes the poison."

Accepted Answer

The answer of Explain the following statement (quotation at the...

Question 7

Examples of chemicals that can be ____________________ include DDT, PCBs, and methylmercury.

Accepted Answer

The answer of Examples of chemicals that can be ____________________...

Question 8

Since the AIDS virus has reduced life expectancy in some sub-Saharan African countries by as much as 20 years, the result is that some countries, such as Botswana and Zimbabwe, will each lose half of their adult population within a decade. Briefly discuss the implications of this tragedy.

Accepted Answer

The answer of Since the AIDS virus has reduced life...

Question 9

Figure 14.5 for questions 1-4 
In the accompanying figure, how many more women between 20 and 24 years of age would survive if AIDS were eradicated?

Accepted Answer

The answer of  
Figure 14.5 for questions 1-4 
In...

Question 10

Figure 14.5 for questions 1-4 
In the accompanying figure, in what age range are men more likely to die from AIDS than females?

Accepted Answer

The answer of  
Figure 14.5 for questions 1-4 
In...

Question 11

Describe at least one principle that can help us to evaluate and reduce risk.

Accepted Answer

The answer of Describe at least one principle that can...

Question 12

Discuss the specific hazards we face from infectious diseases and exposure from chemicals and make a general statement about how we can reduce these major risks.

Accepted Answer

The answer of Discuss the specific hazards we face from...

Question 13

It is estimated that approximately one of every 12 women of childbearing age in the United States has enough ____________________ in her blood to harm a developing fetus.

Accepted Answer

The answer of It is estimated that approximately one of...

Question 14

The ____________________ system is a complex network of glands that release tiny amounts of hormones into the bloodstreams of humans and other vertebrate animals.

Accepted Answer

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

Question 15

Figure 14.5 for questions 1-4 
In the accompanying figure, how many more men between 20 and 24 years of age would live if AIDS could be eradicated?

Accepted Answer

The answer of  
Figure 14.5 for questions 1-4 
In...

Question 16

What purpose does the accompanying graph serve in our challenge of evaluating hazardous chemicals?

Accepted Answer

The answer of What purpose does the accompanying graph serve...

Question 17

Explain why infants and children are more susceptible to the effects of toxic substances than adults.

Accepted Answer

The answer of Explain why infants and children are more...

Question 18

Figure 14.5 for questions 1-4 
In the accompanying figure, in what age range are females more likely to die from AIDS than males?

Accepted Answer

The answer of  
Figure 14.5 for questions 1-4 
In...

Question 19

Some studies have shown that exposure of human babies to the group of hormonally active agents called ____________________ may correspond with early puberty in girls and male infertility.

Accepted Answer

The answer of Some studies have shown that exposure of...

Question 20

Discuss at least one of the factors that explains why most people do a poor job at evaluating risk.

Accepted Answer

The answer of Discuss at least one of the factors...

Quiz 14: Environmental Hazards and Human Health

The immune system has specialized cells and tissues that protect the body against disease and harmful substances by forming ____________________, which are specialized proteins that render invading agents harmless.

On the accompanying graph, explain what the designation LD50 means.

Discuss why estimating risks from technologies is difficult.

Water bottles can contain ____________________, which is an estrogen mimic that is used as a hardening agent in certain plastics.

On the accompanying graph, what dose in hypothetical units did it take to kill 25% of the population?

Explain the following statement (quotation at the beginning of Chapter 14) made by the German scientist Paracelsus: "The dose makes the poison."

Examples of chemicals that can be ____________________ include DDT, PCBs, and methylmercury.

Since the AIDS virus has reduced life expectancy in some sub-Saharan African countries by as much as 20 years, the result is that some countries, such as Botswana and Zimbabwe, will each lose half of their adult population within a decade. Briefly discuss the implications of this tragedy.

Figure 14.5 for questions 1-4 In the accompanying figure, how many more women between 20 and 24 years of age would survive if AIDS were eradicated?

Figure 14.5 for questions 1-4 In the accompanying figure, in what age range are men more likely to die from AIDS than females?

Describe at least one principle that can help us to evaluate and reduce risk.

Discuss the specific hazards we face from infectious diseases and exposure from chemicals and make a general statement about how we can reduce these major risks.

It is estimated that approximately one of every 12 women of childbearing age in the United States has enough ____________________ in her blood to harm a developing fetus.

The ____________________ system is a complex network of glands that release tiny amounts of hormones into the bloodstreams of humans and other vertebrate animals.

Figure 14.5 for questions 1-4 In the accompanying figure, how many more men between 20 and 24 years of age would live if AIDS could be eradicated?

What purpose does the accompanying graph serve in our challenge of evaluating hazardous chemicals?

Explain why infants and children are more susceptible to the effects of toxic substances than adults.

Figure 14.5 for questions 1-4 In the accompanying figure, in what age range are females more likely to die from AIDS than males?

Some studies have shown that exposure of human babies to the group of hormonally active agents called ____________________ may correspond with early puberty in girls and male infertility.

Discuss at least one of the factors that explains why most people do a poor job at evaluating risk.