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FINAL QUESTIONS Chapter 32 - What is predation? Define predator, prey. What factors are involved? Why are predator-prey interactions important in maintaining species diversity in communities? What are keystone species? Chapter 33 - What is learning preparedness? Why is environmental stimulation important during animal development? Is nature or nurture involved? Chapter 34 - What is the earth’s ozone? What is the ozone hole? How did it form? How does ozone deterioration affect us? Chapter 31 – Ecosystems Define ecology- study of interactions of living things with one and other Community- animals fungis etc all living together in a certain area habitat, - the soil water that the community is at . Ecosystem- is the community and the habitat together . What is the path of energy flow in ecosystems? 1 st = producers plants algy produce their own energy photosynthesis 2 nd = consumers eat plants 3 levels 1 trohic level is plants 2 nd is things that eat plants etc autotrophes= producers heterotrophs concumers herbivore/primary consumers- animal that eats plants carnivores/secondary consumers- eat the animals that eat the plants omnivores/tertiary consumers ,-eat both detritivores, decomposers-eat dead things *****Why do food chains generally consist of only 3 or 4 steps? Describe the relationship of animals in the ecological pyramid and the distribution of food incorporation. Is there a higher or lower biomass at thetrophic level? ***What is cycling/recyling of physical components of ecosystems? Transpiration- evaporating water from plants What are major sources of groundwater pollution? fertilizer Pesticides etc are leeking into the groundwater . Define respiration- extract enegy form organic foods by stripping away carbon atoms and combining then with oxygen combustion-
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This note was uploaded on 04/28/2008 for the course BIO 102 taught by Professor Ribbens during the Fall '07 term at Western Illinois University.

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