Final answer:
A biome is a group of ecosystems that share similar climate, vegetation, and wildlife, with these features being consistent across the world for any given biome type.
Step-by-step explanation:
A biome is a group of ecosystems that share similar climate, vegetation, and wildlife. These ecosystems are defined by the general type of physical environment that exists anywhere in the world with similar conditions. In terms of the climate, biomes may have very different average temperatures and amounts of precipitation, but the climate in a particular biome type is consistent across the planet.
The types of vegetation found in a biome are influenced by the climate and are relatively similar within the same biome. Furthermore, similar vegetation supports similar types of wildlife in a given biome. Regardless of the geographical location, these characteristics ring true for a biome, as it is the environment's physical characteristics that unify the ecosystems.
Different terrestrial biomes are usually defined in terms of their plants such as trees, shrubs, and grasses. Common examples of biomes include tropical rainforests, deserts, grasslands, and temperate forests. A biome's climate and dominant plant life serve as a backdrop for the types of animals that live there, with each biome supporting animals that are adapted to its unique environmental conditions.