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Question:-
Please describe advantages and disadvantages of Principle Components Analysis (PCA) method in controlling population stratification.
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- Question:- How do you predict that an increase in emigration will change the shape of this population's age structure? Use the simulation to test your prediction before committing to one of the four options. a.The overall size of the curve will increase in the same proportion at every age. b.The overall size of the curve will decrease in the same proportion at every age. c.The size of the curve will increase at every age, but with the greatest change at the older ages. d.The size of the curve will primarily in the range of ages from 20 to 40.Please help me with these ungraded practice problems. I am a bit confused. Draw the plots using google sheets or excel and please include pictures of the plots and directions on how you plotted it. Equation 3 and 4 are attached as images. Equation (3) is density independent because the population growth that takes place between time t and time t +1 does not depend on the population density N. That is, it is density independent because there is no N term on the right hand side of Equation (3). In contrast, one possible discrete time mathematical model that includes density dependence (equation 4) is where K is the carrying capacity (expressed in units of population density). Note that when Nt= K, the whole term in the exponent equals zero. Since e0 = 1, this means that the ratio Nt+1/Nt does not change from one year to the next when Nt = K. 1a) Draw a plot of the ratio of population densities in Eq. (3) as a function of N if you set if r = 0.05. 1b) Draw a plot of the ratio of…Which of the lab field techniques would you use to answer each of the following questions? Answer choices A-E. What is the density of dandelions in the lawn? Is the population of warblers in Scotland Run park in decline? A. Daubenmire plots B. BBS C. Mark/Recapture D. Point Centered Quarter E. Life Table Analysis
- Need help with 1 and 2 questions: 1.) Two different populations of commander butterfly were studied over a period of two years. The following results were obtained. Population size of commander butterflies Population| Original size| Final size 1 2436 2873 2 2185. 2649 Which of the following concepts would best compare the change in population size of the two populations? A.) Growth rate (gr ) B.) Biotic potential (r) C.) Density (Dp ) D.) Per capita growth rate (cgr ) 2.) When population density reaches the carrying capacity of the environment, the death rate in the population becomes A.) less than the birth rate B.) equal to the birth rate C.) more than the emigration rate D.) more than the immigration rate1 Of the three models of population growth, which is the most accurate depiction of a population in a natural environment? exponential model linear model boom-and-bust logistic modelIn a minimum of 6-8 sentences, (A) provide an example of an health inequity and/or disparity and (B) provide a potential or actual solution to the problem. Be sure to include the specific group/community/population that is impacted by this problem.? Give typing answer with explanation and conclusion
- The Sorenson index and importance values both help the similarities and differences among different communities. What is a weakness of the Sorenson index in comparison to importance values?Which statments are correct? Question 25 options: Species diversity tends to increase with evapostranspiration Species diversity tends to increase with when parasitism is low Species diversity tends to increase with island area Species diversity tends to be higher when disturbance frequency is low Species diversity tends to increase with decreasing latitude-----///--- Article: More than 1000 rivers account for 80% of global riverine plastic emissions into the ocean 1. What are the top 3 countries greatest contributors for the plastic pollutants? and the river that is so called "most polluting river"? 2. Inferencing from the article state ONE REASON and POSSIBLE SOLUTION that can help solve or minimize our human footprints in this situation? 3. In reading the article can you find the correlation between population density and the amount of plastic pollutant made? Why or why not? 3. Are you disturb on what you read? or not at all? Why?
- Question:- Which is considered to give the weakest evidence on a nutritional issue? (Which ranks at the bottom of the Hierarchy ofEvidence?)A) Ecological studyB) Randomized controlled trialC) Case-control studyD) Cohort studyQuestion: The Jack Rabbit population of the Bowl grows from 49 to 1004 individuals over 10 years. a) Grounds Keepers decide to examine the Jack Rabbit population around the Education building. Initial surveys find 23 individuals. They hire you to predict the size of the Education population in 5 years based on the observations in the Bowl. The following formulas are available for use:Need help Discuss the differences between the equilibrium and non-equilibrium views of populations.