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Iii communities read pages 777 783 1 what is a niche

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III. Communities – Read pages 777-783 1. What is a niche?
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Name: ________________________________________________ Period: ____ Date: ___________ 2. What is the niche of a cheetah? Use “Animal Diversity Web” as resource to answer this question. http://animaldiversity.ummz.umich.edu/site/index.html 3. Explain the competitive exclusion principle. 4. What is the difference between interspecific and intraspecific competition? Give an example of each. 5. Fill out the following species interaction chart: Species Interaction Symbolic Relationship (+,-,0) Example Competition Predation Parasitism Mutualism Commensalism 6. What is succession? 7. What is the difference between primary and secondary succession? 8. Will the following events lead to primary or secondary succession occurring? a. Forest Fire – b. Molten lava covering the surface of a former forest – c. A retreating glacier that stripped the ground of soil - d. Hurricane –
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Name: ________________________________________________ Period: ____ Date: ___________ 9. What is biodiversity? 10. What factors may affect biodiversity? VI. Ecosystems – Read pages 795-803, 788-791, 792-794 1. Why do organisms need energy? 2. How are the movement of energy and the movement of chemicals (matter) in a ecosystem different? 3. After a predation event, how much energy is transferred to the next trophic level? 4. What are the three basic steps of chemical cycling? 5. Describe the process of transpiration. 6. What is the difference between cohesion and adhesion? 7. What is the role of photosynthesis and cellular respiration in the carbon cycle?
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Name: ________________________________________________ Period: ____ Date: ___________ 8. Why do all organisms rely on carbon?
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