Tyler Christopher is leaving 'General Hospital' â Nikolas has been recast at 'GH' with Nick Stabile. Get the details. Tyler Christopher is leaving 'General Hospital' â Nikolas has been recast at 'GH' with Nick Stabile.
Definition of BIOREGION. : a region whose limits are naturally defined by topographic and biological features (as mountain ranges and ecosystems).â bioÂ·reÂ·gionÂ·al \ËbÄ«-Å-ËrÄj-nÉl, -ËrÄ-jÉ-nÉl\ adjective.ADVERTISEMENT. a region whose limits are naturally defined by topographic and biological features (as mountain ranges and ecosystems).
1 Biome: a grouping of terrestrial ecosystems on a given continent that are similar in vegetation structure, physiognomy, features of the environment and characteristics of their animal communities.  Formation: a major kind of community of plants on a given continent.