Terms in this set (18)
The amount of living material in a trophic level
stable, mature ecological community with little change in the composition of species
when one organism kills and eats another
Job or role of an organism
What eats, what eats it, where it lives...
when both organisms benefit
When one organism benefits and one get nothing
when one organism benefits and the other is harmed
An organism that cannot make its own food and gets food by consuming other living things.
Eats the primary consumer (autotroph)
An organism that eats producers (Herbivores)
Autotrophs vs. Heterotrophs
Autotrophs - "self feeders" Make their own food (key example - glucose)
Heterotrophs - organisms that eats other organisms for energy
An organism that obtains energy and nutrients by feeding on other organisms or their remains.
Producers, autotrophs (self-feeders)
make the nutrients they need from compounds and energy obtained from their environment
mutualism vs commensalism vs parasitism
mutualism: both benefit
commensalism: one partner benefits, other does not, but isn't harmed
parasitism: one benefits, other is harmed
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