Exam 14: Environmental Hazards and Human Health

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

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A(n)____________________ is the probability of suffering harm from a hazard that can cause injury,disease,death,economic loss,or damage.

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​A ____ disease,like most cancers,is not caused by a living organism and does not spread from one person to another.

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After poverty and gender,the greatest risks people face are mainly from lifestyle choices.

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​Some organisms live on or inside other organisms and feed on them,and can cause serious infectious diseases,including malaria.These are known as ____________________.

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​Discuss why estimating risks from technologies is difficult.

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​What is the scientific process of using statistical methods to estimate how much harm a particular hazard can cause to human health or the environment?

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The blood of an average U.S.citizen contains traces of 212 different chemicals,including potentially harmful chemicals such as arsenic and bisphenol A.

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​What do we call the probability of suffering harm from a hazard?

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​Some research indicates that ____ causes people to overestimate risks and to worry more about unusual risks more so than common risks.

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Only water-soluble toxins can accumulate in body tissues and cells.

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The death toll from smoking in the United States is roughly equivalent to more than six fully loaded 200-passenger jet planes crashing every day with no survivors.

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​Nitrous acid (HNO2),formed by the digestion of nitrite (NO2)preservatives in foods,can cause ____________________ that are linked to increases in stomach cancer in people who consume large amounts of processed foods and wine containing such preservatives.

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Several antimalarial drugs have become more effective against the Plasmodium parasites since about 1970.

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​What is the greatest threat to global human health?

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

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

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​What is a type of chemical hazard?

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​The system responsible for defense against disease and harmful substances is the ____.

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Figure 14.11 Figure 14.11    -What purpose does the accompanying graph serve in our challenge of evaluating hazardous chemicals?​ -What purpose does the accompanying graph serve in our challenge of evaluating hazardous chemicals?​

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