3. Determine if the scenario below will display a Type I, Type II, or Type III survivorship curve. An organism has 100 offspring, but 90% of them die within the first three months. not enough information Type I Type II Type III
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- 11 The diagram below shows a 'bathtub' analogy which is often used to help explain the epidemiological concepts of incidence, prevalence and mortality. TERRRIE G A. B. C. D. X. Incidence Prevalence Incidence Prevalence X-Water entering bath Y-Water in bath If the water represents individuals in a population, which of the following correctly labels the concepts? Z-Water leaving bath Y Prevalence Incidence Mortality Mortality Z Mortality Mortality Prevalence IncidenceWhich of the following mortality rates use the estimated total mid-year population as its denominator? [ O Sex-specific mortality rate O Crude mortality rate O Age-specific mortality rate Cause-specific proportionate mortality rate A new treatment is developed that prevents death but does not produce recovery from disease. Which of the following will occur? O Prevalence will decrease O Incidence will decrease O Incidence will increase Prevalence will increase1. A stark difference between endemic with epidemic and pandemic is: O Epidemic involves several continents O Endemic involves abnormal phenomena of diseases O Endemic involves normal phenomena of diseases O Epidemic involves abnormal phenomena of diseases O Pandemic involves abnormal phenomena of diseases 2. This is the age & sex composition of Country Z in 2020. Identify the type of population pyramid for this. O Stage 1 O Stage 4 O Stage 3 O Stage 2 3. Identify which term best describes the pattern of occurrence of the three diseases noted below in a single area: "There are usually no more than 2-4 cases per week; last week there were 13 cases." O Pandemic O Outbreak O Sporadic O Endemic 4. Philippines was declared polio free since 1993. Then, 16 cases of polio were reported on May 2020. What is the level of disease occurrence for this situation? O Pandemic O Endemic O Epidemic O Any of the choices mentioned
- socially, sexually, seasonally are the optionsHumans have which type of survivorship curve? Type I Type II Type III Type IVThe CDC released the following data in its 2013 Vital Statistics report. Age interval Number dying in age interval Number surviving at beginning of age interval 0-10 756 100,000 11-20 292 99,244 21-30 390 98,953 31-40 1,234 98,164 41-50 2,457 96,311 51-60 5,564 94,352 61-70 10,479 38,788 Table 45.3 Calculate the mortality rate for each age interval, and describe the trends in adult and childhood mortality per 100,000 births in the United States in 2013.
- as an epidemiologist you are going to investigate the effect of lead exposure in a Baltimore neighborhood and the incidence of lead poisining and related difficulties in early childhood. You start with a cohort of 400 babies born in 2015. At baseline, none of them have any symptoms of lead poisining, but after taking envirnomental samples from their homes you find that 250 have lead paint exposure and 150 of them do not You follow them for ten years and keep track of incident cases of lead poisining based on blood samples. In 2025 you end your study and report the following: 100 of the children previously exposed to lead paint in 2015 have lead poisining and 25 of the children that were not exposed in 2015 have lead poisining. Calculate the cumulative incidence for the exposed group and the unexposed group. Calculate the relative risk between lead paint exposure and lead poisining.What patterns do you detect? Often in disease outbreak investigations we want to see a pattern for a particular problem. Think back to the 'white board' approach from a previous question and consider the types of information about individuals that may help you look for patterns. Select from the list below attributes that may help you You can chosse all or some I choose Time of disease onset and occuption but there is more I guess Occupation Hair color Gender Weight Age Time of disease onsetC. Disease is density-dependent because spreading occurs more easily when a popuiaionl is Closer together. D. A change in average temperature is a density-dependent factor because fewer organisms can acclimate to variations in temperature. Base your answers to questlons 14-16 on the Informatlon below and on your knowledge of blology. Unless actions are taken to slow the decline of domesticated honeybees and augment [increase] their populations with wild bees, many fruits and vegetables may disappear from the food supply, said Claire Kremen, a conservation biologist at Princeton University in New Jersey. The honeybee decline, which is affecting domesticated and wild bee populatans around the world, is mostly the result of diseases spread as a result of mites and other parasites as well as the spraying of crops with pesticides, scientists say.. Source: "Bee Declines May Spell End of Some Fruits, Vegetables," National Geographic News, October 5, 2005 14. The decrease in the honeybee…
- 1. How did the mortality ratios change over time for each location? Which location faced the biggest change? Which location faced the smallest change?1. Define the following key terms used in epidemiology: Prevalence Incidence Attack rate Point prevalence 2. You were recently hired as an epidemiologist at a county office. List and explain three measures that you would use to calculate a specific disease situation. In your view, why is it difficult to get accurate information about disease status in a population? 3. A study starts with 4,875 health people. Over the next 2 years, 75 develop the disease. What is the incidence rate of disease over the study period? Show all work. 4. In a survey of 1,150 women who gave birth in Maine in 2000, a total of 468 reported taking a multivitamin at least 4 times a week during the month before becoming pregnant. Calculate the prevalence of frequent multivitamin use in this group.1. What is a vector? What is a vectorborne disease? Can you give some examples of each? 2. What is a foodborne disease outbreak? What factors contribute to foodborne disease outbreaks? Name some common foodborne disease causative agents. 3. How would you interpret the relationships among population growth, the environment, and human health?
