POPULATION INTERACTIONS
- Population: the group of individuals of a species inhabiting a given area.
- Habitat: it is the place where the organism lives. It is never occupied by a single species. It is occupied by a biological community.
- Biological community: Populations of animals, plants, and microbes living in an area and interacting with each other.
- Ecological niche: each species has a functional role to play in the ecological system.