PRACTICE Calculate the population densities for the following countries. Round to two decima Country: Albania Albanla Population: 3 002 859 Area: 28 748 km2 Country: Colombia Population: 45 239 079 Colombla Area: 1 138 910 km2
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- Context Calculating mortality in a very small population: ⚫ 896 people in a population at mid-year • 27 deaths in the population in that year • 247 cases of diabetes in the population • 10 deaths from cancer, 8 deaths from heart disease, 5 deaths from diabetes, 2 deaths from car accidents, 2 deaths from other injuries. ⚫ Of the 896 people in the population, 234 were college students, and there were 2 deaths in that sub-population. Assignment Referring to the data above, please answer the following questions. Answers should be expressed per 1000 people, except for proportionate mortality and case-fatality, which should be expressed as a percent. Round your answers to nearest whole number. D Question 1 important information. A 1 APR 11 O pts Ը 1Population AA Aa aa 0.41 0.09 0.50 Given this distribution, what is the frequency of Aa in the next generation provided the assumptions of HWE? 0.21 0.36 0.41 0.50Grades Members The graph below represents the number of individuals in a population of wolves and in a population of moose observed in the same isolated geographic aree over a 40-year period, from 1955 through 1995. Which of the following statements about the two populations is best supported by the information presented in the graph? Conferences DeQ Online Newsela prmation Bology Periods 1 and 2 eding periods thachool MP1, Hhschool 2,500 2,250 2,000 1,750 1.500 1,250 - Wolves 2 Highachool MPS. thachool MP 50- --- Moose ation 40 ting days Tue Wed Tu fri 30 1,000 20 750 500 250 10 1955 1960 1965 1970 1975 1980 1985 1990 1995 Year The wolves were predators of the moose, which were otherwise reproductively O successtul Mutualism allowed the two populations to reproduce while occupying the same ecological niche Speciation occurred when the two populations became reproductively isolated from each other The reproductive rane of the wolves was greater than the reproductive rate of the O moose…
- The chart below shows selected population data for twodifferent countries, A and B. Study the chart and answerthe questions that follow Calculate the rates of natural increase (due to birthsand deaths, not counting immigration) for the populations of country A and country B. Based on thesecalculations and the data in the table, for each of thecountries, suggest whether it is a more-developedcountry or a less-developed country and explain thereasons for your answersThe table below shows 2010 census data on Ubekizakhan with the population of women and the number of births to these women by different age groups;Age of Women Number of Women Number of Children15-19 1861 52020-24 11175 146125-29 23556 2291130-34 30611 308235-39 39974 113240-44 39158 23145-49 3122 72 Assuming the country’s sex ratio at birth was 60 males per 80 females, compute the following; i) Plot a graph showing the age-specific fertility rate (ASFR) in Ubekizakhan and explain the variations.ii) General fertility rate iii) Age-specific fertility rate iv) Gross reproduction rate v) Total fertility rateThere are particular factors that quantitatively influence population growth. Choose the correct factor that is being described (mortality, natuality, immagration, emigration) 1. The number of individuals that leave the population; can be due to aniotic factors (e.g., escape from fire, drought, flood, or climate change) or biotic factors (e.g., increased competition). __________________ 2. Number of births; tend to increase with food supply and decrease with competition _____________________ 3. Death; maybe due to kill-off (predation) or die-off (disease, starvation, or exposure) ___________________ 4. The number of individuals entering the population from outside; can be due to abiotic factors (e.g., escape from fire, drought, flood, or climate change) or biotic factors (e.g., increased competition) __________________
- Name the 4 assumption that must be trust for the population estimates to work, and give a visable population estimatetetail deer live in and around an area 80 km² area that includes the Jasper town site. Both species depend on similar food sources. The population of the elk tends to show the pattern of distribution illustrated below. and 9. The elk population of this area at the beginning of a study year was 500. If there were 35 births and 5 deaths throughout the year, what was density of the elk population at the end of the year. 0.060 6.6 5.9 0.38The following table below includes age specific populations for Community Y. Age specific death rates for the standard population is given. Using the indirect method of age adjustment calculate the standardized mortality ratio for Community Y. State your conclusions about how the age distribution of Community Y affects the crude mortality rate. Age group Standard Age-Specific Mortality Rate in 2008 (per 100,000) Community Y Population Expected Deaths <20 25 1,200,000 20-39 75 850,000 40-59 250 750,000 60-74 425 1,000,000 >75 600 450,000 Total 4,250,000 Community Y had a total of 28,000 observed deaths in 2008. Use the indirect method of age adjustment to calculate the SMR. List the expected deaths for each age group in Community Y Calculate the Standardized Mortality Ratio for Community Y Conclusions:
- Deer Population on an Island 120 100 96 80 78 60 6아 40 36 20 TO 1 2 3 4 5 6 7 8 9 10 11 12 Number of Months Dear population 1-During which months was the growth of the deer population exponential? | 2-Give one possible reason why the population decreased after 5 months 3-What is the approximate carrying capacity of the island? 4-Explain "carrying capacity" 5-What type of density independent factors may cause the population to decrease (name 2)? 6-What type of density dependent factors may cause the population to decrease (name 2)? 7-Overall, do deer populations seem to exhibit exponential or logistic growth? Explain why Number of DeerS2) Below are two tables showing the population size and deaths by age for one year in the states of Louisiana (LA) and Florida (FL). Use the data to answer the following questions. You may use the blank cells in the tables for calculations and to show answers Age group 0-15 16-70 71+ Louisiana Deaths 30 215 585 Florida Age group Deaths 0-15 16-70 71+ 25 400 725 Population 165,000 300,000 75,000 Population 90,000 435,000 225,000 a. Calculate the overall crude mortality rates for LA and FL expressed as per 100,000 population. LA: FL: b. Calculate the age-adjusted mortality rates using the combined population as the standard. c. Explain what accounts for this difference in crude rates and adjusted rates between LA and FL.A population of boreal toads has a current size of 100 and time steps are measured in years. If the instantaneous rate of increase is 0.8 (toads/(toadXtime)), what will the expected population size be after two years? Note: You need to first figure out which equation to use for this problem. O 64 toads O 117 toads O 495 toads O 6400 toads No toads will be left because the instantaneous rate of increase is less than 1.0.