Which term refers to a large ecological region with a distinct climate and specific species adapted to it? 

A)  biome 
B)  population 
C)  community 
D)  ecosystem

Ecological Region

A geographically distinct area with characteristic flora, fauna, and environmental conditions, often defined by natural boundaries.

Specific Species

A specific species is a distinct type of organism identified by unique characteristics separating it from other organisms, often used in the context of conservation, study, or management.