Ecosystems

The living parts of an ecosystem

the nonliving parts of an ecosystem

a relationship between organisms or species that is helpful to both

a single living thing

an interaction between organisms or species that is helpful to one but neither helpful nor harmful to the other

when more than one individual or population in an ecosystem relies on the same limited resources

a relationship between organisms of different species where one organism benefits at the expense of the other

a group of interacting individuals of the same species located in the same area

a system comprising all the biotic and abiotic factors in an area and all the interactions among them

biotic and abiotic environmental factor that restricts the growth of a population