Key Terms Definitions
Abiotic = the inorganic components of an ecosystem
Biotic = populations of organisms or species in an ecosystem
Dominant Species = common species in an ecosystem
Habitat = the place where species live
Hierarchy = a way of arranging things in graded compartments
Keystone Species = the most important species in an ecosystem, they exert a form of a controlling influence over their system
Niche = the role a species plays in a system
School Ecology = a branch of sociology concerned with the spacing and interdependence of people and institutions in the context of school.
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