Water makes up the largest part of the biosphere, the Marine biome is larger than all other water and land biomes put together, it covers nearly 75% of the Earth's surface. Aquatic regions house numerous species of plants and animals, both large and small. In fact, this is where life began billions of years ago when amino acids first started to come together. Without water, most life forms would be unable to sustain themselves and the Earth would be a barren, desert-like place. Although water temperatures can vary widely, aquatic areas tend to be more humid and the air temperature on the cooler side.
Marine regions cover about 3/4 of the Earth's surface and there are hundreds of different fish to cover each square foot of it. It include oceans, coral reefs, and estuaries. Marine algae supply much of the world's oxygen supply and take in a huge amount of atmospheric carbon dioxide. The evaporation of the seawater provides rainwater for the land . Populations of organisms in the marine biome are limited by salt level, light, temperature, water pressure, and nutrients available.
Animals found in the Marine: are whales, dolphins, sharks, and seals which are some of the most popular kinds of sea mammals. Also the walrus, star fish, eel, crabs, jelly fish, and fresh and salt water fish, but this is just a small list compared to the many different kinds of fish that inhabit the marine biome. In general these fish have about five different adaptations. These adaptations include sleek bodies to cut down on friction when swimming through the water, gills to allow them to breath underwater, eyes on the sides of their heads so they can see enemies coming, fins to help them swim faster, and they have color coded skin to help them hide from their enemies. Most of the small fish are herbivores
Plants in the Marine: Along the ocean floor you will find many creatures disguised as plants, while they are truly primitive animals. Some examples