Ecological communities, also known as biomes, are groups of living organisms that interact with each other and their environment. They are composed of plants, animals, fungi, bacteria, and other living organisms that share a common environment and interact with each other. Biomes are characterized by their climate, soil type, and vegetation. Examples of biomes include deserts, grasslands, forests, and tundra. Each biome has its own unique set of species and environmental conditions that make it distinct from other biomes.