Reference no: EM132814135

1. What are the two basic components of any ecosystem?
2. What two physical factors determine the type of biome that is present in an area?
3. Explain why autotrophs are called producers and heterotrophs are called consumers.
4. Select the correct answer from the terms in the parentheses. Ecosystems will recycle (energy/nutrients), but ecosystems will not recycle (energy/nutrients).
5. Define trophic level.
6. This question is based on the following description of an ecosystem: Organism A is a plant that performs photosynthesis. Organisms B eats Organism A; Organism C eats Organism B and Organism D eats Organism C. This is summarized in the following diagram: A ß B ß C ßD. The direction of the arrows indicated the organism that eats the other.
7. Based on this example fill in the blanks with the appropriate answer.
8. Organism ___ is a producer; Organism C belongs to trophic level ____.
9. If an herbivore consumes 200 pounds of plant material, roughly how much is converted to herbivore use?
10. When considering ecosystems, explain the basic difference between reservoirs and exchange pools.
11. Identify two reservoirs for carbon.
12. Name four greenhouse gases.
13. Explain how burning fossil fuels disrupts the normal carbon cycle.
14. Identify type of specific pollution caused by nitrogen or its compounds.
15. Identify the three components involved in cycling of chemicals in the biosphere.
16. What are the stages in the nitrogen cycle that produce the compounds necessary for plant growth?
17. Define sedimentary cycle and give examples.
18. Identify and describe two types of sources of water pollution.
19. What is a good definition of cultural eutrophication?
20. What is a good definition of exponential growth?
21. Explain the how biotic potential affects carrying capacity.
22. Define population growth rate and how it is calculated.
23. If the birth rate is 25/1000 and the death rate is 9/1000 per year, what is the population growth rate?
24. What are the three age groups of population that are depicted in age structure diagrams? Which one has the greatest impact on increased population growth in LDCs?
25. Identify and define the types of renewable energy.
26. What is the danger presented by chloroflurocarbons?
27. What is biodiversity and what contributes to its loss?
28. What is a good definition of consumptive use value of a resource?
29. Define a sustainable society.
30. Would ecotourism be considered a direct or indirect value of biodiversity?
31. Identify 4 characteristics of an unsustainable society.
32. Identify 4 characteristics of a sustainable society.