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Unformatted text preview: 2/13/2008 1 Ecology Introduction and Biomes Ecology Introduction and Biomes tangled web! tangled web! Levels of organization Levels of organization 1. Cellular 2. Tissues 3. Organs 4. Organ systems 5 Organism/Individua 5. Organism/Individual 6. Population 7. Species 8. Community 9. Ecosystem 10. Biosphere Ecology Populations Populations • Defined as a group of individuals of the same species living in a particular geographic area Exp/ Students at CSULB are a • Exp/ Students at CSULB are a different population than those at CSUF Species Species • Defined as a group of similar organisms that can interbreed under natural conditions Communities Communities • Defined as all the organisms of all the species that inhabit a particular area • Exp/ organisms living in a kelp bed, which includes bacteria, inverts, fish, sealions. Ecosystems Ecosystems • Defined as all the abiotic factors in addition to the entire community of species that exist in a certain area Exp/ rainforest • Exp/ rainforest 2/13/2008 2 Biosphere Biosphere • Defined as the entire global living system with abiotic components and all organisms and their effects....
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