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animal that eats others


animal is eaten by predator


struggle between individuals or populations for a limited resource


interaction in which organisms work to benefit all


relation between two species who live together who live together in a close relationship


interaction between flower and bee


relationship between two species where one benefits and the other is not effected


relationship between two species where one benefits and the other is harmed

limiting factor

any factor that limits growth of population in eco system

caring capacity

maximum number of a species that an eco system can provide for.


gradual change in eco system in which one biological community is replaced by another

pioneer species

first living thing to move between a barren enviornment

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