The study of interactions between organisms and their living and non-living environment.
Ecology.
A non-living factor that influences an organism.
Abiotic Factor.
A living factor that influences an organism.
Biotic Factor.
A transition area between ecosystems.
Ecotone.
An organisms role in an ecosystem, consisting of its place in the food web its habitat, its breeding area, and the time of da at which its most active.
Ecological Niche.