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Published byOscar Welch Modified over 7 years ago
Organism Population Community Ecosystem Biome Biosphere
Ecological Levels of Organization
Organism First (lowest) level of organization An individual, single species Any unicellular or multicellular form exhibiting all of the characteristics of life
Population A group of organisms of the same species that live in the same geographical area Produce fertile offspring Compete with each other for resources
Community Two or more populations of different species that interact and live in the same geographical area
A community of living organisms and the abiotic factors they interact with ◦ Abiotic factors—non-living factors (light, air, water, etc.) Ecosystem
One of several types of ecosystems define by their climate Biome
A collection of ecosystems Includes all of the living world and the biotic and abiotic factors that affect life Biosphere
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