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Marine ecosystems are among the largest of Earth's aquatic ecosystems. They include oceans, salt marsh and intertidal ecology, estuaries and lagoons, mangroves and coral reefs, the deep sea and the sea floor. They can be contrasted with freshwater ecosystems, which have a lower salt content. Marine waters cover two-thirds of the surface of the Earth. Such places are considered ecosystems because the plant life supports the animal life and vice-versa. See food chains.
Marine ecosystems are very important for the overall health of both marine and terrestrial environments. According to the World Resource Center, coastal habitats alone account for approximately 1/3 of all marine biological productivity, and estuarine ecosystems (i.e., salt marshes, seagrasses, mangrove forests) are among the most productive regions on the planet. In addition, other marine ecosystems such as coral reefs, provide food and shelter to the highest levels of marine diversity in the world.
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Answers:Its very complex. animals are over plants.
Answers:Taiga (biome) This is one that i found for you. Check out the 2nd link as it is more involved. From the Trees, to the Beetle, to the Squirrel, to the Fox, to the Bacteria http://terriffictaiga.blogspot.com/2007/04/this-is-flow-of-energy.html http://www.tutorvista.com/biology/taiga-biome-food-chain
Answers:Nitrogen in soil leaches into water + CO2 in air-Algae-minnows-small fish-larger fish-mammals (bears)-nitrogen in soil + CO2 in air. If one organism is removed, the chain will fail.