Memory Biome Definition & CharacteristicsVersión en línea Learn about biomes. por Andrea Lecuona Definition Temperatures, precipitation amounts and prevalent organisms characterize the biomes of the world. A biome is a large area of land that is classified based on the climate, plants and animals that make their homes there. Land-based biomes Characteristics Ecosystems Biomes contain many ecosystems within the same area. Water-based biomes are called aquatic biomes. Water-based biomes Land-based biomes are called terrestrial biomes.