What term do scientists use to describe the area that a particular taxa inhabits?

The term used by scientist to describe the area that particular taxa inhibit is "Biome".

Explanation:

A biome is a term used by scientists to describe the Organisms or taxa that inhabits or occupy a particular area. They are determined by primary vegetation, climate type of the area and geographical location. The living organism in a biome share common traits that are specific to the individual biome those living organisms inhabit.