What term describes a group of different organisms living together in a particular area, such as a backyard?

The term that accurately describes a group of different organisms living together in a particular area, such as a backyard, is 'community.' A community consists of various species that interact with each other in a shared environment. This includes not only the plants and animals but also microorganisms and other living organisms that coexist in that specific area. The interactions among these species—such as competition, predation, and symbiosis—play a crucial role in the dynamics of the community.

In contrast, a population refers to a specific group of individuals of the same species living in a given area. An ecosystem encompasses both the community of organisms and the physical environment they interact with, including abiotic factors like soil, water, and climate. A biome is a larger ecological area on the Earth’s surface, defined by its climate, plants, and animals, spanning multiple ecosystems. Thus, within the context of the question, 'community' is the most fitting term to describe the diverse group of organisms found in a specific location.