Complete The Following And Submit The Word Document By Midni

Complete The Following And Submit Theworddocument By Midnight Sunday

Complete the following and submit the Word document by midnight Sunday. Remember to include complete citations for all sources used to answer each question. 1. Are most invasive (exotic) species K-selected or r-selected species? Explain your choice and why that makes sense in terms of their ecological success. 2. Briefly define a community and an ecosystem and describe how the two are interrelated. 3. Which of the following levels of organization are in order, from simplest to most complex. a. population, organism, community, ecosystem b. community, ecosystem, population, organism c. organism, community, population, ecosystem d. population, ecosystem, organism, community e. organism, population, community, ecosystem 4. Mosses growing on bare rock will eventually help to create soil. These mosses are involved in ___ succession. a. primary b. secondary c. tertiary 5. If a farmer sprays a pesticide onto a field and kills half of the insect pests, he has caused a reduction in________. a. field capacity b. carrying capacity c. population size d. More than one of the above 6. What type of survivorship curve would you expect for a plant species in which only a few seeds are produced and most of these survive to produce adult plants? a. type I b. type II c. type III 7. An ecological niche is an organism's_______ in an ecosystem. a. location b. habitat c. resources d. function 8. No matter how rapidly populations grow, they eventually reach a limit and begin to stabilize. This is called the ______________. 9. Unicellular algae live in the tissues of coral animals. The algae provide food for the coral, while the coral provides a stable home for the algae. This is an example of a. Parasitism b. Commensalism c. Mutualism 10. The vast majority of energy taken into an ecosystem is____________. a. converted into biomass by plants. b. utilized by secondary consumers. c. lost as heat. d. used by the primary consumers. e. concentrated in the decomposers. 11. A farmer is using an insecticide to treat his crops. While most insects do not survive their first exposure to the insecticide some have a gene that enables them to survive. When these survivors reproduce they will likely pass along this resistance to their offspring. This results in an increase in numbers of the insects over time. Which of the following processes applies to this survival? a. cloning b. mutation c. natural selection d. genetic engineering 12. What is the ecological relationship between insects and crops? a. mutualism b. competition c. predation 13. Sea anemones growing on the backs of crabs without damaging the crabs are an example of a. Parasitism b. Commensalism c. Mutualism 14. Which of these is a population density-independent regulating factor? a. Competition b. Predation c. Size of population d. Weather e. Resource availability 15. Producers are_________. a. Autotrophs b. Herbivores c. Omnivores d. Carnivores 16. If biological magnification occurs, the ___ will have the highest levels of toxins in their systems. a. producers b. herbivores c. primary carnivores d. top carnivores 17. Given the amount of sunlight that hits the plants on our planet, and the ability of plants for rapid growth and reproduction, how come we aren’t all hip deep in dead plants? SOC 321 HW: Q1: What are three different statistical tests of significance? When is each used? Q 2 : What is the difference between inferential and descriptive statistics? Q3: What is a control variable? Is it used in multivariate or bivariate analysis? Give an example. Q4: What is the difference between a loaded and a double barreled question? Give an example of each, and how to avoid. Q5: What is replication? Is it most relevant for bivariate or multivariate analysis? Q6: The 10-point rule is a general rule for interpreting crosstabs that says that a 10 point difference or higher between variables is meaningless. True False Q7: Epsilon measures the difference between the largest and smallest percentages in a row of a crosstab. True False Q8: The slope of a regression line is the point where it crosses the X axis, while the intersect is the angle it forms with the X and Y axes. Question 8 options: True False Q9:An association between variables that is significant at the .05 level is stronger than one that is significant at the .001 level. Question 9 options: True False Q10:Experiments are the best research design to establish causality.? True False Q.11: (This covers how to properly write a questionnaire) Identify the problem with each of the following survey questions, and tell us how you would fix the problem, or reword the questions so that this problem is addressed to the best of your ability. Read carefully ! In your opinion, given the number of people who suffer because they cannot afford medical care or college, should the government offer more comprehensive healthcare programs for young adults? Yes , No, Don’t know, No answer Question 11: Q12: Identify the problem with the following survey question, and tell us how you would fix the problem, or reword the questions so that this problem is addressed to the best of your ability. Read carefully ! In your opinion, should the government spend more money on healthcare and education? Yes No Don’t know No answer Question 12 options: Question 13 (5 points) Identify the problem with the following survey question, and tell us how you would fix the problem, or reword the questions so that this problem is addressed to the best of your ability. Read carefully! When do you usually consume alcohol? At parties With friends in bars When I am depressed Don’t know No answer Question 13 options: Question 14 : Identify the problem with the following survey question, and tell us how you would fix the problem, or reword the questions so that this problem is addressed to the best of your ability. Read carefully! What is the annual income in your household? $0 to 20,000 $20,000 to $40,000 $40,000 to $60,000 $60,000 or more Don’t know No answer Question 14 options: Question 15: Identify the problem with the following survey question, and tell us how you would fix the problem, or reword the questions so that this problem is addressed to the best of your ability. Read carefully! Where to you most often buy school supplies? At the store closest to me A the store that has the biggest sales From a national chain store It depends Don’t know No answer Question 15 options: Question 16: Describe and explain the cross-tab below in 5 to 10 lines. Question 16 answer: Question 17 :What test of significance would you use for this case of bivariate or multivariate analysis? Assume that each variable is measured at its highest possible level of measurement. Meaning, for instance, that age is always ratio, not ordinal. Weekly hours of study and GPA Question 17 options: ANOVA regression Chi-square t-test Question 18 :What test of significance would you use for this case of bivariate or multivariate analysis? Assume that each variable is measured at its highest possible level of measurement. Meaning, for instance, that age is always ratio, not ordinal. Income by years of education and age Question 18 options: regression ANOVA t-test Chi-square Question 19 :What test of significance would you use for this case of bivariate or multivariate analysis? Assume that each variable is measured at its highest possible level of measurement. Meaning, for instance, that age is always ratio, not ordinal. Age at first marriage by parents’ income Question 19 options: Chi-square t-test regression ANOVA Question 20 : What test of significance would you use for this case of bivariate or multivariate analysis? Assume that each variable is measured at its highest possible level of measurement. Meaning, for instance, that age is always ratio, not ordinal. Number of movies seen in a year by years of education Question 20 options: regression Chi-square ANOVA t-test Question 21 :What test of significance would you use for this case of bivariate or multivariate analysis? Assume that each variable is measured at its highest possible level of measurement. Meaning, for instance, that age is always ratio, not ordinal. Number of employees by companies' industry or business Question 21 options: ANOVA Chi-square t-test regression