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Vocabulary #12

Unit 6: Ecology - Cycles and energy flow

TermDefinition
111. ecosystem A complex set of relationships and interactions among organisms and their environment.
112. biotic factor part of an ecosystem that that is or was once living, or is part of a living thing
113. abiotic factor part of an ecosystem that is non-living. Examples: Air, water, minerals, light, temperature, pressure
114. trophic level describes the position of an organism in a food chain or web and has to do with how the organism gets its energy. Examples are producer, consumer (primary or secondary), decomposer, and scavenger
115. decomposer an organism that gets its energy by breaking down dead organisms. Examples: bacteria & fungi
116. herbivore an organism that gets its energy & nutrients by consuming only plants
117. carnivore an organism that gets its energy & nutrients by consuming only animals
118. omnivore an organism that gets its energy & nutrients by consuming plants, animals, and others
119. energy pyramid A model for how energy is distributed among the trophic levels of a food web within an ecosystem.
120. terrestrial on land (not aquatic/in water)
Created by: coradesj
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