Final answer:
All the populations of different species that occupy a given area are referred to as a community. The community is a part of an ecosystem, which includes all the living things in a particular area along with the non-living parts of the environment. The biosphere represents the collection of all ecosystems and encompasses the zones of life on Earth.
Step-by-step explanation:
All the populations of different species that occupy a given area are referred to as a community. A community consists of all the populations inhabiting a particular area. For example, in a forest, the populations of pine trees, flowering plants, insects, and other organisms form the community. The community itself is a part of an ecosystem, which includes all the living things in a particular area along with the non-living parts of the environment. At the highest level of organization, the biosphere represents the collection of all ecosystems and encompasses the zones of life on Earth.