Assessment Brief

ASSIGNMENT 3 WORKSHEET   assignment 1 IS 2 to 3 pages In this assignment, you will investigate the biotic and abiotic structure and function of an ecosystem.Choose one of the following ecosystems:Tropical rainforestGrasslandCoral ReefEstuaryDesertYou will write a two to three page APA-style research paper about your choice of ecosystem including:Where might this type of ecosystem be located? Give one specific example.Describe the structure of the ecosystem: List both the abiotic components and biotic componentsDescribe the function of the ecosystem: How do the abiotic and biotic components interact in biogeochemical cycles? Describe both the carbon and nitrogen cyclesDescribe disturbance and recovery: Describe one natural and one human caused disturbance to the ecosystem you have chosen. Explain the damage to the ecosystem, including how the abiotic and biotic characteristics of the ecosystem changed.Explain how ecosystems recover naturally based on resilience mechanisms and the theory of secondary succession.ASSIGNMENT 2  3 PAGESNot all countries have moved through all four phases of the demographic transition. You are a consultant for a developing country that is not yet in phase IV of demographic transition.In your own words, complete the following:Define demographic transition.Describe the 4 phases of demographic transition, including if the population is stable, growing, or declining in each. ·According to demographers, what factors lead to a decline in the crude birth rates (CBR) and crude death rates (CDR) in the epidemiologic and fertility phases of the demographic transition? ·Briefly describe three living conditions and/or environmental impacts in developed countries that have reached phase IV, and contrast them with these conditions or impacts in developing countries that remain in earlier phases. ·Assuming that the demographic transition phase IV is a goal for developing countries, what two programs or initiatives would you suggest to assist them in progress toward this goal?ASSIGNMENT 3 WORK SHEET ATTACHED USE THIS LINK FOR THE INFORMATION https://class.aiuniv.edu/_layouts/MUSEViewer/MUSE.aspx?mid=MU17318AND HERE IS THE WORKSHEET Lab 1 worksheet for assignment instructions and data collection.Please submit your completed assignment.For assistance with your assignment, please use your text, Web resources, and all course materials.Course MaterialsaSSIGNMENT 4 SCIENCE LAB  THE WORKSHEET FOR 3 AND 4 ARE AT THE TOP Lab 2 worksheet for assignment instructions.Please submit your completed assignment.For assistance with your assignment, please use your text, Web resources, and all course materials.Course Materialshttps://class.aiuniv.edu/_layouts/MUSEViewer/MUSE.aspx?mid=MU17319 to the muse lab and the worksheet is  assignment 4 workseet sci lab