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From Wikipedia

Marine ecosystem

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.

From Yahoo Answers

Question:It needs to include both plants and animals. I can use a website or just a direct answer. Need it quickly!!!!!! thank you!!

Answers:Its very complex. animals are over plants.

Question:HELP!!!! I have a report i am supposed to do and can't find a food chain with 8 organisms in the Taiga (biome)!!!!

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

Question:Describe what you think would happen if one of the organisms were removed.

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.



From Youtube

The food chain :The grassland ecosystem and the food chain.

Interaction In Ecosystem :Check us out at www.tutorvista.com An ECOSYSTEM consists of the non-living (or abiotic) environment (rocks, soil, water, climate) and the populations of living organisms that reside in that environment. Let us look at how we organize the interactions between living organisms in an ecosystem. First of all, consider what living organisms need in order to live. Some of the things they need are food, water, oxygen and a method to remove waste products. Water and oxygen can be obtained from the abiotic environment and waste products can be expelled into the environment. An organism needs to obtain food to convert into energy, and the energy is used in life processes, such as breathing, moving, maintaining organs and reproducing. So an organism needs to eat food; that same organism could be eaten by another bigger organism. This "who eats whom" can be organized into what is called a FOOD CHAIN. Here is an example of a FOOD CHAIN: algae -- krill -- codfish -- leopard seal -- killer whale