HLTH 505 Quiz Toxins
HLTH 505 Quiz: Toxins
Covers the Learn material from Module 4: Week 4.
- Which two of the following toxic substances are capable of crossing the placental barrier and causing severe fetal damage in humans?
- Which of the following statements about LD50 is false?
- Which of the following is the leading source of dioxin emissions in the U.S.?
- What is considered to represent the single most frequent cause of lead poisoning among American children?
- What danger is associated with drinking, as opposed to inhaling, asbestos?
- “Minamata Disease” killed or seriously disabled hundreds of Japanese who had inadvertently eaten fish contaminated with:
- Which of the following organisms is most acutely sensitive to the toxic effects of dioxin?
- Which of the following toxic substances has been found as a contaminant in farmed salmon?
- Mesothelioma, a cancer of the lung or stomach lining, is known as a “marker disease” because its only known cause is exposure to what toxic substance?
- For which toxic substances do researchers say there is no safe level—no threshold below which exposure will result in no adverse health impact?
- What was the toxic contaminant in Agent Orange which allegedly caused a variety of ailments among Vietnamese civilians and American servicemen exposed to the chemical during the Vietnam War?
- Which of the following is a major threat posed by TCDD and related chemicals?
- Where do PCBs, dioxins, or any of the chlorinated hydrocarbons concentrate in living tissues?
- Human poisonings due to mercury exposure most commonly result in what kind of health damage?
- PCBs, which biomagnify as they move up the food chain, are most commonly taken up by humans when they eat certain kinds of:
- Which of these pests is a problem because its bite results in a painful ulceration which may take months to heal and leaves a large, permanent, ugly scar?
- Which of the following is no longer an effective method for controlling malaria?
- In which of the following groups of organisms would you expect to see the greatest effects of pesticide biomagnification?
- For what accomplishment did Paul Muller receive a Nobel Prize in 1948?
- What was the major reason EPA gave for banning the use of most chlorinated hydrocarbon insecticides?
- What is meant by the term “integrated pest management”?
- Minamata Disease, reproductive failure among peregrine falcons and eagles exposed to DDT, and the death of western grebes at Clear Lake, CA, are all examples of:
- When did DDT first come into widespread use?
- What characteristic of botanical insecticides such as pyrethrum and rotenone makes them useful?
- What is the basic cause of the phenomenon known as “secondary pest outbreak”?
- Which of the following pesticidal groups is most acutely toxic to the pesticide applicator?
- What characteristic of the organophosphate insecticides makes them more environmentally acceptable than the chlorinated hydrocarbons?
- An example of a persistent, broad-spectrum insecticide is:
- The mosquito-borne illness of greatest concern in the United States today is:
- Lyme disease is a newly recognized ailment transmitted by the bite of which of these pests?