A group if organisms of different species living together in a particular place is called a?

A group of organisms of different species living together in a particular area and share same resources is known as community.

Explanation:

Community is one of the most important aspect of ecology, because ecology studied at community level (synecology) give us a clear cut idea that how species interact with each other and share same resources. Inside community species form different interaction with each other like predation, parasitism, symbiosis etc. All these elements are responsible an interaction in food web and keep the ecosystem balance.