Biology: Ecology Study GuideDefinitions:1.Ecology2.Population3.Community4.Ecosystem5.Biome6.Biosphere7.Biotic8.Abiotic9.Carrying capacity10. Habitat11. Niche12. Keystone species13. Symbiosis14. Succession15. Pioneer species16. Climax community17. Trophic level18. Producer19. Consumer20. Decomposer21. Detritivore22. ChemotrophBasic Ecology1.Know the components and order of the levels within the biosphere.2.Know the reasons why populations could increase/decrease.3.Be able to explain ecosystems are affected by biotic and abiotic factors.4.Be able to explain how a keystone species may affect an environment.Community Interactions1.Be able to explain predation and competition.2.Be able to explain the various forms of symbiosis.3.Be able to explain how the competitive exclusionprincipal reduces competition.Energy and the Ecosystem1.Know the basic components of an ecosystem.2.Be able to explain the role of producers, consumers,and decomposers.