High Quality Content by WIKIPEDIA articles! Homogeneous (adjective) means consisting of parts or people which are similar to each other or are of the same type. Homogeneity (noun) means all of the same or similar kind or nature. In ecological terms it can also be expressed as a lack of, or reduction in biodiversity. Species richness is the fundamental unit in which to assess the homogeneity of an environment. Therefore, any reduction in species richness, especially endemic species, could be argued as advocating the production of a homogenous environment.