species
environment
biosphere
habitat
abiotic
community
ecosystem
niche
biotic
population
the function or position of an organism or a population within an ecological community
a group of organisms of the same species located within the same geographical area
a system consisting of all the interactions that occur between the abiotic and biotic factors of an environment
the place where an organism naturally lives and grows
all of the population of different species in a particular area
all of the non-living factors within an environment
all of the living factors within an environment
the sum of all living matter on Earth
all of the living (biotic) and non-living (abiotic) factor in the same geographic area
a group of organisms that are alike and are able to reproduce among themselves
