B3I1O1R1E1G2I1O1N1S1
13 points
BIOREGIONS is validvalid
BIOREGION, a collection of ecoregions with an ecozone [n]
BIOREGION, an area in which climate and environment are consistent [n]
BIOREGION, a collection of ecoregions with an ecozone [n]
BIOREGION, an area in which climate and environment are consistent [n]