organism population community ecosystem biome biosphere
Post on 06-Jan-2018
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Organism
Population
Community
Ecosystem
Biome
Biosphere
Ecological Levels of Organization
OrganismFirst (lowest) level of organizationAn individual, single speciesAny unicellular or multicellular form
exhibiting all of the characteristics of life
PopulationA group of organisms of the same
species that live in the same geographical area
Produce fertile offspringCompete with each other for resources
CommunityTwo 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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