Earth as a whole can be considered a massive biome because it encompasses both aquatic and terrestrial biomes, all of which are interconnected. The planet, when viewed from space, is one large ecological system with various life forms thriving across the globe.
Aquatic biomes are the largest biome on Earth, covering approximately 75% of the planet's surface. These biomes are primarily water-based, with two key types: freshwater and marine biomes. These biomes are home to some of the planet's most diverse ecosystems, ranging from coral reefs to the deep ocean.
Terrestrial biomes are land-based ecosystems that cover the Earth’s surface, each shaped by its specific climate, precipitation, and vegetation types. Examples include tropical rainforests, deserts, temperate forests, grasslands, and tundras. Each biome supports different types of flora and fauna adapted to their unique conditions.
Eco-regions are smaller divisions of biomes that account for local variations in climate, geography, and environmental factors. They are distinct from biomes because they are based on more localized ecosystems, such as specific mountain ranges or coastal areas. This division allows for an even deeper understanding of Earth's biodiversity.