What defines a biome in ecological terms?

A biome is defined as a large ecological area on the Earth's surface, characterized by specific climate conditions and distinctive plant and animal communities that are adapted to those conditions. The key element of this definition is the grouping of species that share similar climate and vegetation, which is aptly captured in the correct option. For example, a desert biome will have plants and animals that are adapted to dry conditions, while a rainforest biome will exhibit high biodiversity and lush vegetation due to its humid climate.

The various factors such as temperature, precipitation, and type of vegetation are critical in determining the nature of a biome and the life forms that inhabit it. Biomes can be found across different geographical areas, and they demonstrate how life on Earth is interconnected through ecological relationships.