Question

1. The epidemiologic risk transition is characterized by a: a) Rapid increase in population c) Population comprised of predominantly young individuals b) High mortality rates d) Growing burden of chronic, degenerative diseases (Questions 2-4) Match the demographic transition stage in the right column with the associated characteristics on the left. Both fertility and mortal ity rates are high 2. a) Stage 2 b) Stage 1 c) Stage 3 3. - Drop in mortality rates but fertility rates remain high _ Dropping fertility rates; more even age and sex distributions 4. 5 .The natural population replacement fertility rate in the U.S a) 2.1 births per woman b) 3.9 births per woman c) 3.1 births per woman d) 4.2 births per woman The rate at which new disease or mortality events will occur in a population in a given period of time. a) The biological gradient 6. b) The case fatality rate (CFR) c) The prevalence for that disease d) The incidence rate 7. Purely observational epidemiologic studies do not usually include: a) Cross-sectional studies c) Experimental studies b) Counts d) Cohort studies Which of the following is used to describe toxic effects of chemicals? a) AQI c) TFR 8 b) VOCS d) LDso Which best describes a Risk Characterization a) Estimates the number of excess unwarranted health events expected at different time intervals. 9. b) Determination of the amount of a substance that is available to the internal organs of the body d) The time period between initial exposure and a measurable response. c) The study of the adverse effects of chemicals on living organisms." Those members of a population who are capable of developing a disease are known as: 10. b) Incident cases a) Prevalent cases d) The immune fraction c) The population at risk A type of correlative relationship between "the characteristics of exposure to a chemical and the spectrum of effects caused by the chemical." a) Competitive inhibitor c) Drug-receptor complex 11. b) Dose-response relationship d) Linear threshold curve

Answer 1

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Please do mention the question number for which you want to know the answer from next time as we have limited time to answer a question. According to HomeworkLib rules, I have provided the answer for the first question posted. I also tried answering as many questions as possible in the allotted time.

1) It is characterized by a growing burden of chronic degenerative diseases.

2- b

3 - a

4-c

5) 2.1 births per women

7) Experimental studies

8) LD50

10) population at risk

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