Use your knowledge of population growth models to evaluate the spread of Covid-19 in the world population. How would you characterize this type of growth? Consider growth the increase/decrease in the number of cases per a certain amount of time (day or week).
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Use your knowledge of population growth models to evaluate the spread of Covid-19 in the world population. How would you characterize this type of growth? Consider growth the increase/decrease in the number of cases per a certain amount of time (day or week).
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- Figure (c) shows a population increasing in size under the influence of the relationships in (a) and (b). What do each arrow represent?Using the above graph, what is the approximate percent of the population in the US and Kenya that is under the age of 15? (number order represents US, Kenya) A24,26 B12,28 C32,62 D16,36If the incidence rate of a very serious disease is 25/100,000 person-years and the prevalence of this disease in the population is 75/100,000, what is the average survival time of individuals who contract this disease? [Assume the population is in steady state] * Hint* Formula (D=P/IR)
- Write a paragraph explaining how understanding population ecology relates to COVID-19 in Hawaii. You must include at least one specific example of how the data is useful (you do not need to include actual data).The data below represent a cohort of organism “X”, tracked from birth to death. Time period* Number alive at start of period Proportion surviving at start of time interval Deaths during period Rate of mortality during time period "0-1" 432 1.00 390 0.90 "1-2" 42 0.10 29 0.69 "2-3" 13 "3-4" 11 "4-5" 10 "5-6" 9 "6-7" 7 "7-8" 3 "8-9" 0 * Numbers are reported over eight equal sized time periods – these could represent days, weeks, months or years. 1.Complete the table by recording survivorship (proportion alive at the start of the time period), the number of deaths and the mortality rate for each time period. For each column you need to ensure you indicate how you performed your calculation (e.g. show one example calculation or provide a formula). 2.Plot a survivorship curve for species X using semi-log graph paper.Remember that survivorship is, by convention, plotted as a proportion of…The data below represent a cohort of organism “X”, tracked from birth to death. Time period* Number alive at start of period Proportion surviving at start of time interval Deaths during period Rate of mortality during time period "0-1" 432 1.00 390 0.90 "1-2" 42 0.10 29 0.69 "2-3" 13 "3-4" 11 "4-5" 10 "5-6" 9 "6-7" 7 "7-8" 3 "8-9" 0 * Numbers are reported over eight equal sized time periods – these could represent days, weeks, months or years. a) Complete the table by recording survivorship (proportion alive at the start of the time period), the number of deaths and the mortality rate for each time period. For each column you need to ensure you indicate how you performed your calculation (e.g. show one example calculation or provide a formula). b) Plot a survivorship curve for species X using semi-log graph paper. A template sheet has been uploaded to the Problem Set 2 folder. Remember…
- Explain what is happening to the population at points A, B, C, and Din the following diagram.this is the survival curve of the data below, can you explain what does the straight line mean? is it necessary to have that? where do you know where to put the straight line? day animal survivors 0 50 2 44 4 42 7 41 9 40 11 39 14 39 16 39 18 39 21 39Which statistic below is the best example of incidence of a disease? A) In 2005, 2 million people died from HIV B) A total of 40 million people have died from HIV infection C) In 2005, 4 million people acquired HIV D) A total of 65 million people have gotten HIV E) 25 million people currently suffer from HIV infection
- Which compares to the age structure of less developed and higher developed countries, specifying the x and y axis. Give an example of natioins with these types of age structure diagrams. What does a high fertility rate tell you about the future of this population.Speculate upon the calculation shown in the table and Graph; Briefly explain: a)Do the cohort survivorship curves from each decade different from one another? If so, what might have caused the differences? b)Were the population growing while the cohort was extant? c)How would the data have been altered if Woodland Cemetery had stopped excepting interments in 1950 rather than being open to the present day? d) One problem with studying survivorship curves is that a birth cohort must be followed through until the death of the last individual. How would the shape of a 1960's cohort survivorship curve be altered from those of the 1800's?Create a graph that represents a population undergoing logistic and exponential growth. Properly label the x and y axis of your graphs