Ecology

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Terms in this set (...)

primary consumer
organism that eats organic matter, producers, or the bottom level of the energy pyramid
secondary consumer
an organism that eats primary consumers; second level of the energy pyramid
tertiary consumer
an organism that eats secondary consumers as well as organic material; the top level of the energy pyramid
niche
an organism's particular role in an ecosystem, or what it does/needs to survive
food chain
the pathway of energy transfer through various stages as a result of the feeding patterns of a series of organisms or a series of events in which one organism eats another.
food web
a diagram of overlapping food chains that show the feeding relationships between organisms in an ecosystem.
energy pyramid
a triangular diagram that shows an ecosystem's loss of energy from one feeding level to another in a food web.
autotroph
another word for a producer
heterotroph
another word for a consumer