What is an ecoregion? Please explain the difference between a biome and an ecoregion.An ecoregion is smaller than a biome, but does it consist of...

Both biome and ecoregion
are ecological terms. Biome refers to a major regional
group of plant and animal communities adapted to the natural environment.
Biome can be of two types: terrestrial(land)
and aquatic(water). Ecoregion, which is an
abbreviated form of ''ecological region', refers to a smaller class. Each
biome consists of several ecoregions, an
ecoregion(also called bioregion) covering a
realm of land/water having geographically distinctive communities, sharing the same
envoronmental conditions and ecological dynamics.

Yes, an
ecoregion does consist of different ecologically distinctive
communities and species.