Unit 5 Study Guide

1. How is a food web related to energy flow within an ecosystem?
2. Give an example of one biogeochemical cycle and explain how it is important to living things.
3. When a population is declining, what is the possible relationship between births, deaths, immigration and emigration?
4. Create a table to answer the following. What are some factors that affect life in freshwater and saltwater ecosystems?
5. Compare and contrast primary and secondary succession.
6. If the temperature in an area drops five degrees between one day and the next, has the climate of the area changed? Explain.
7. What is a keystone species and how might the removal of it affect the stability of and the biodiversity within its ecosystem?
8. What would happen to a forest ecosystem if a fire killed most of its producers?
9. Explain how having bottled drinking products, and other bottled items, is both a benefit and detriment to our environment.
10. How can renewable resources, such as water and forests, become non-renewable? What can we do to help prevent these resources from becoming non-renewable?