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Non-living factors which effect survival
an organism that makes its own food
the part of earth where life exists
living factors which effect survival
the relation between two different kinds of organisms when one receives benefits from the other without damaging it
an organism that eats other organisms or organic matter
group of various species living in the same area and interact with each other.
an organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients
a variable affected by number of organisms in the area.
a variable affects a population regardless of the population density.
study of interactions between organisms and their environment.
community of organisms their abiotic environment.
movement of individuals out of an area
% growth that leads to doubling time
a series of steps in which organisms transfer energy by eating and being eaten
(ecology) a community of organisms where there are several interrelated food chains
the type of environment in which an organism or group normally lives or occurs
organism that obtains energy from the foods it consumes; also called a consumer
symbiotic relationship in which both species benefit from the relationship
role in ecosystem
A relationship between two organisms of different species where one benefits and the other is harmed
a group of organisms of the same species populating a given area
any animal that feeds on refuse and other decaying organic matter
relationship in which two species live closely together
feeding level in an ecosystem
largest number of individuals of a population that a given environment can support
movement of individuals into an area occupied by an existing population
Expansion that increases by the same amount during each time interval.
organism that feeds on plant and animal remains and other dead matter