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Ecosystems 9-19

TermDefinition
biomass the amount of living matter in a habitat
autotroph another name for producer- it makes its own food
trophic level shows how much energy in the food chain
niche the role an organism has in an ecosystem
primary consumer another name for herbivore- eats only plants
secondary consumer they eat herbivores (primary consumers) and are the second ones to eat
tertiary consumer they are the top consumers
decomposer eat decayed organisms and return nutrients to the soil
abiotic nonliving factors in an ecosystem
biotic all the living factors in an ecosystem
ecosystem all of the abiotic and biotic factors coming together in a given area
food chain how energy flows in an ecosystem through one path
food web overlapping food chains that show the energy flow and interaction among organisms
detrivore an organism that feeds on dead organic matter ( a type of decomposer)
Created by: Ms. Long 6
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