AP BIOLOGY

Detailed explanation-1: -The correct answer is under C. a region characterized by specific climate and organism communities. Biome is a set of ecosystems characterized by a certain climate and different communities of plants and animals.

Detailed explanation-2: -A biome is an area classified according to the species that live in that location. Temperature range, soil type, and the amount of light and water are unique to a particular place and form the niches for specific species allowing scientists to define the biome.

Detailed explanation-3: -Biomes are a group of ecosystems, and caracterized by biogeographical constraints. Communities are groups of species in the same place, at the same time.

Detailed explanation-4: -Tropical forests have the highest biodiversity and primary productivity of any of the terrestrial biomes.