Some examples of primitive animals would be the sponge, sea urchin, and the sea anemone. If we were to group the plants into three major groups, they would be classified as coral weed, seaweed, and various forms of kelp.
Coral reefs are the most complex aquatic ecosystem found between 30 degrees north and south latitude, the greatest concentration is found between four degrees north and south latitude in the western portions of all major oceans. There are two categories of coral reefs: shelf reefs and oceanic reefs. Shelf reefs include fringing reefs, platform reefs, bank reefs, and barrier reefs and are located on the continental shelf, while oceanic reefs are found off the continental shelf growing around the margins of volcanic islands. Coral reefs support a greater number of fish and invertebrate species than any other ecosystem in the ocean.
Kelp is a plant that grows in the ocean. Its leaves are great brown blades that grow up to 50 feet long and can grow to more than 100 feet long below the surface of the ocean. Laminderia is another type of kelp found along rocky shores. It can grow 15-20 feet long, but it is usually much smaller.
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Climate and Location of Marine: The marine biome is the largest of all the biomes. It covers three fourths of the earth. When it comes to the marine biome, climate doesn't really affect it much. It does not change because water does not heat up or cool down quickly. The ocean carries warm and cool currents that heat or cool the land it goes by. For example, Hawaii is warm due to the warm currents that are being swept onto the land that it surrounds. It is warmer as you get closer to the equator and it is colder as you get closer to the poles. Even though the climate doesn't affect the marine biome, the marine affects the mainland's climate a lot. Its currents affect all the coastal areas. Another way the marine affects the coastal areas are the winds, depending upon the temperature of the water, the winds usually match that temperature.