All living things depend on one another for survival.
These species indicate the health of the environment.
A wetland that dries up at some part of the year.
Species that are carried to a new location by people
Species that have naturally evolved in an area.
Living and nonliving things interacting together in an area.
The study of interactions between living organisms and their environment.
A place where an organism lives that provides food, water, shelter, space, temperature, and everything it needs to survive.
The variety of species living in an area.
A pattern of overlapping food chains.
A series of events in which one organism eats another.
The role an organism plays in an ecosystem or how it makes its living.