EEB142 Exam 3 Study Questions

EEB142 Exam 3 Study Questions - EEB142 Study Questions 1....

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EEB142 Study Questions 1. What adaptations allow Spartina alteriflora to persist in low marsh areas? What positive interactions with invertebrate animals also aid in the survival of S. alterniflora ? 2. Through what mechanism do S. patens and Juncus outcompete S. alterniflora ? Through what mechanism does Juncus outcompete S. patens? 3. Salicornia and Distichlis are found in areas with S. patens and Juncus . What mechanisms allow for this pattern? 4. How do Snow Geese positively affect artic salt marshes when their population levels are low? When Snow Geese populations are high? 5. How do crabs and turtles indirectly benefit Spartina alterniflora in the lower areas of salt marshes? 6. Explain three ways that humans are affecting the hydrological cycle. What is the overall impact in terms of freshwater availability for human use? 7. Where is the majority of global freshwater found? 8. How does freshwater differ from saltwater in terms of light penetration? In terms of pH? 9. What are lotic systems? Lentic systems? 10. Describe stratification in a freshwater lake. 11. Describe the process of seasonal mixing in a northern temperate lake that mixes completely twice a year. 12. Name and define three different patterns of lake mixing. 13. What properties can contribute to a lake being meromictic? Amictic? 14. What are three adaptations seen in lake organisms to maintain or adjust water column position? 15. What are three adaptations seen in lake organisms to survive low oxygen conditions? 16. What are three adaptations seen in lake organisms to live on the water surface? 17. Name and describe three basic habitats within streams. 18. Describe two adaptations to flow in rivers. 19. In what two ways does a flattened body aid survival in a river? 20. How does the complex life cycle of an aquatic insect differ from that of a marine invertebrate like a barnacle? 21.
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EEB142 Exam 3 Study Questions - EEB142 Study Questions 1....

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