Here, we can see different types of starfish, coral reefs and fishes in the Great Barrier Reef. Marine ecosystems are among the largest of Earth's aquatic ecosystems. They include oceans, salt marshes, intertidal zones, estuaries, lagoons, mangroves, 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.arine 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.
Then go to the Format menu, and you will find Conditional Formatting on it. You can then start setting the conditions you want and the formatting that you want for those conditions. Conditional formatting allows you to change the formatting of a cell based on the values that are in it.
In Excel 2003, you could create conditional formatting rules with three conditions. In Excel 2007, you are no longer limited by number; you are only limited by system memory. Multiple conditions evaluating to true. In Excel 2003, you could apply only one conditional format to a given cell. If more than one conditional format evaluated to true, then only the format associated with the first conditional format was applied. Excel 2007 now allows you to have multiple conditional formats on a cell applied if more than one condition evaluates to True.