All of the following conclusions can be made about the population represented in the above age pyramid EXCEPT Select one: a. the wide base indicates a high birth rate b. death rates are only high in extreme old age c. the steep sides show the death rate is high for both the young and adults d. life expectancy is low with few people reaching old age
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- C1C1 C1C2 C2C2 D1D1 D1D2 D2D2 Sand 0.07 0.39 0.54 0.25 0.5 0.25 Land 0.18 0.49 0.33 0.06 0.22 0.72 Lets believe that there is an effective pop. size with 1000 individs in the population of sand. What do you predict will be the generations it will take for the C locus heterozygosity to get to the 1/2 of the recent or in other words current value?3806/variants/596276/take/13/ Tp The very long beak of a hummingbird has evolved along with the tubular flower that it pollinates. Which of the following processes explains how these 2 separate populations can change together? All Changes Saved s Answered 56°F Mostly cloudyWolves recolonized a large area around Grand Teton National Park (GTNP) in the late 1990’s. Wolf biologists started estimating the number of wolves in 2000 at 21 wolves in GTNP population. In 2010 they repeated their population surveys and counted 105 animals.The population growth rate of wolves is 8 per year.State biologists want to know how long it will take for this population to reach 175 wolves so they can delist them in this region of Wyoming. How long will it take for the population to reach this threshold, assuming growth stays the same?
- A scientist conducts a study on tawny owls that are found in regions of Europe where it snows during winter. The tawny owls can have either gray or brown feather color. The graph shows the percentage survival of both the owl types in relation to the depth of snow. 100 --- gray owl brown owl 80 60 40 20 0. 5. 10 15 20 25 Snow Depth (cm) The scientist finds that climate change has resulted in a reduction in the average snow depth in the region where tawny owls live. The average snow depth in the year 1980 was approximately 12 cm, which reduced to 3 cm in 2008. How did the distribution of gray and brown tawny owls in the population likely change from the year 1980 to 2008? O In 1980 there were more brown-colored owls, and in 2008 there were the same number of gray and brown owls O In 1980 there were more gray-colored owls, and in 2008 there were the same number of gray and brown owls. O The populations of gray and brown owls were the same in the year 1980, and the number of gray owls…Ecologists are trying to determine the population of a certain species of wildflower in a 1 km² (1 000 000 m² conservation area. They randomly sampled eight 16 m² quadrats and they counted the following number of wildflowers: 8, 6, 9, 12, 4, 10, 8, and 7. Estimate the number of this of wildflowers in this conservation area. 4 000 000 wildflowers 0.5 wildflowers 500 000 wildflowers 400 000 wildflowers 5 000 000 wildflowersFigure 45.16 Age structure diagrams for rapidly growing, slow growing, and stable populations are shown in stages 1 through 3. What type of population change do you think stage 4 represents?
- Examine the age structure diagram. This diagram best represents a population that is: 100+ Male Female 01% |0.2% C.6% 95-99 9D-94 03% 1.% 19% 22% 1.3% 75-79 1.7% 70-74 23% 2.7% 65-69 2.7% 3.0% 60-64 3.0% 3.3% 55-59 3.5% 3.7% 5D-54 3.8% 3.9% 4549 4.0% 39% 4044 3.6% 3.8% 35-39 3.4% 3.4% 3D 34 3.0% 2.9% 25-29 2.8% 2.6% 2D24 2.% 2.5% 15-19 2.5% 2.4% 10-14 2.6% 2.5% 5-9 25% 2.5% 2.0% 2% 4% 0-4 22% 10% 10% Southern Europe - 2019 Population: 152,446,950 PopulalionPyramid.net growing quickly growing slowly not growing/is stable decliningChange 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. % PopulationIn the age structure diagram below, which of the following is true of this 2 points population? 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 0.4 295 236 177 118 59 59 118 177 236 295 Population (in thousands) Age Group Population (in thousands) It is from a developed country. It is stable. It is expanding. It is from a developing country. It is declining. This is a reguired question
- A 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 168How are the maps included here meaningful to the I-P*A*T equation? IPAT Equation: Impact = Population x Affluence x TechnologyNumber of rotifers 4500+ 4000- 3500 3000- 2500- 2000- 1500- 1000- 500- 0 Key x Rotifers alone (flask X) • Rotifers when living with water fleas (flask Z) 2 0 2 X -+ 4 Yo * X X X 6 8 10 12 14 16 18 Day Analyze the graph and identify some factors that may contribute to the rotifer population leveling off in the absence of water fleas. Explain your answer in 1-2 sentences.