Ecosystem
Is all the living and nonliving things in an area and their interactions.
Population
Is all the members of a species living in a certain area.
Community
Is all the different organisms that live and interact in an area.
Niche
Is the way an organism interacts with living and nonliving parts of its ecosystem.
Symbiosis
Is the close association of members of different species that live together.
Succession
Is the gradual replacement of one community by another over time.