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Chapter B2

St.George Chapter B2

individual a single organism in an environment.
population all the individuals of the same kind living in the same environment.
community all the populations of organisms living together in an environment
ecosystem a community and its physical environment together
habitat a place in an ecosystem where a population lives
niche the role each population has in its habitat
producer an organism that makes its own food.
consumer an organism in a community that must eat to get the energy it needs.
food chain the ways in which the organisms in an ecosystem interact with one another according to what they eat.
decomposer consumer that breaks down the tissues of dead organisms
food web shows the interactions among many different food chains in a single ecosystem.
energy pyramid the ability to cause changes in matter.
Created by: shelley cavin