Here are some common terms that you might encounter while learning about ecology.
Organism - An individual living thing
Population - A group of individuals of a single species that inhabits the same area
Community - All the different populations wihtin a given area. Within the community, each type of organism (species) fills a certain position
Habitat - The particular part of the environment in which an organism lives
Niche - The role or function of an organism in the ecosystem in which it lives
Ecosystem - A community and its physical environment. An ecosystem must have three components: (a) A source of energy.
(b) Autotrophs to convert this energy to organic compounds
(c) The ability to recycle materials between the physical environment and the individual organism
Biosphere - The portion of the earth on which life exists. It consists of all the ecosystems on the earth
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