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Chapter B2
St.George Chapter B2
Question | Answer |
---|---|
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. |