Ecosystem = made up of all the interacting biotic (living) and abiotic (non-living)features in a specific area. Ecosystems are more or less self-contained functional units. Within ecosystem 2 major factors:
- flow of energy through ecosystem
- cycling of elements within the system
Population = group of interbreeding organisms of one species in a habitat.
Community = defined as all the populations of different organisms living and interacting in a particular place at the same time.
Habitat = place where a community of organism lives. within an ecosystem there are many habitats.
Ecological niche = describe how an organism fits into the enviroment. the role an organism has within an ecosystem.
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