350 300 C 250 200 150 В 100 A 50 10 20 30 40 50 60 70 Time (number of generations) the above graph, which population or populations reach a N of 100 the fastest? O Species A. O Species C. O Species B. Population Size
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- Change in Rabbit Population 1850-2000 100 90 80 70 60 50 40 30 20 10 white gray white gray 1850 2000 In 1850 there was a large snowshoe rabbit population in Manitoba, Canada. Over the years, the winter coloration (the color of the rabbit's fur) of the surviving rabbit population changed. The graph shows the change in winter coloration of rabbits between 185 to 2000. Based on the data, we could hypothesize that A) the winters are longer in length. B) the snowshoe rabbit has migrated to another area. the amount of snow cover varied over the years. D) more snowshoe rabbit predators have moved into Manitoba. % PopulationA population of 100 kit foxes colonizes a new grassland with no other foxes in it. The grassland has a carrying capacity for foxes of 200, and the fox population has a maximum growth rate of 60% per year. What will the population of kit foxes be ** 2 years from now (rounded to the nearest whole fox). *note that the current time frame is year 0. You will have to calculate years 1, and 2. 128 157 145 168Use the graphs to answer the question below. In each of the figures, the x-axis represents time, and the y-axis represents population size. The solid line is population size of Species 1; the dashed line is population size of Species 2. ir is Le asA А. В. С. D. The population represented by the solid line on Graph A above is growing... O Exponentially O Logistically
- A population of 300 fairy wrens colonizes a cloud forest without any other wrens in it. The cloud forest has a carrying capacity of 500 wrens. Fairy wrens have a maximum potential growth rate of 80%. How large will the fairy wren population be in two years (rounded to the nearest whole wren)? ***note that the current time frame is year 0. You will have to calculate years 1, and 2. 462 429 405 492The curve below shows the growth rate of a population that has a per capita growth rate of 0.4. Which of the following is true about this curve. More than one is possible. exponential growth 2500000 2000000 1500000 1000000 500000 0 5 10 15 20 25 Select one or more: Ua. r becomes greater as the population grows because there are more births per year. b. There are more births per generation as you move right on the graph c. exponential growth is most often observed in stable populations that have resided in an environment for a long time. Od. The slope of the curve changes continuously as you move to the right even though r remains the same.Look at the graph below. Grasshopper Population in Grassland < Green Grasshoppers- Brown Grasshoppers 80 60 40 20 Generation 1 Generation 2 Generation 3 Generation 4 Generation 5 Explain what is happening in the graph prior to generation 3. Edit View Insert Format Tools Table 12pt v Paragraph BIU Av ev T?v
- The life table below is for a species of lizard. Use it to answer the questions below. It can be copied and pasted in excel or downloaded here. What is the intrinsic rate of increase of this population? nx bx 678 1 102 31 3 19 10 4 14 12 5 12 12 6 10 14 7 10 10 8 8 11 9 7 10 1.89 0.053 O 1.32 0.51Look at the graph below. Grasshopper Population in Grassland - Green Grasshoppers - Brown Grasshoppers 80 60 40 20 Generation 1 Generation 2 Generation 3 Generation 4 Generation 5 After generation 3, explain a possible reason there is a change in the graph. Predict what change has occurred. Edit View Insert Format Tools Table 12pt v Paragraph v BIUIn a graphing paper, construct age structure diagrams for country A and B using the given data below. Label your graphs completely. Use the following color as your legend: purple: pre-reproductive, green: reproductive and blue: post-reproductive. A B Total population (millions) 140 80 Pre-reproductive 45 12 Reproductive 92 47 Post-reproductive 3 21 a. In which of the countries above would you expect to see a rapid increase within the next few generations? Why? b. Imagine that the graphs show populations of two different species that people want to protect. Which species is likely to need the most protection and management in the near future? Why?
- Mark Recapture can be written as M N = R Define each term. Use this equation to answer the following question. Show your work. A biologist for Mosaic fertilizer company catches 26 Florida scrub jays as part of their monthly environmental monitoring. Each bird is given a band. The next month, they catch 32 birds. 13 of the birds have bands. What is the estimated population size of the birds in that area?A population grows in discrete time according to the logistic growth equation. At time t, the population is 50 individuals. If k is 100 and r is 1.5, what is the population size after 50 generations? (please round to the nearest whole number) О а. 96 b. O c. 100 O d. 88 е. 120 f. 50A scientist constructs a graph to show the age structure of the human population of Country Y. The graph is shown here. Age Structure of the Human Population, Country Y I Male 100+ 95-99 90-94 85-89 80-84 75-79 70-74 65-69 60-64 55-59 50-54 45-49 40-44 35-39 30-34 25-29 20-24 15-19 10-14 5-9 0-4 Female 20% 10% 0% 10% 20% What conclusion is supported by the graph? 1 2 3 4 5 7 oby