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www.reference.com/article/lives-ocean-8cd83572a9e3524c

The ocean is home to many different species of plankton, marine invertebrates, cephalopods, marine mammals and sea turtles. Other creatures that live in the ocean include numerous types of fish, sharks and corals.

www.reference.com/article/ocean-important-life-earth-9d6ba8c6536574ed

The ocean is important to life on Earth because of the role it plays in both the hydrologic cycle and the carbon cycle. The hydrologic cycle, also known as the water cycle or H2O cycle, refers to the relationship that exists between the circulation, evaporation and prec...

www.reference.com/article/ocean-life-kids-4c98b20b49d0b247

Octopuses, jellyfish, sharks, sea stars and sea turtles are a few of the numerous animal species that inhabit the oceans. Since most plants need sunlight to carry out photosynthesis, many underwater plants make their homes close to the shore. Phytoplankton is one of the...

www.reference.com/geography/many-oceans-b9410914e9c9e957

There is only one ocean on the planet, but it is divided into five sections or five oceans. The five sections of the ocean are the Atlantic, Pacific, Southern, Arctic and Indian oceans.

www.reference.com/article/limiting-factors-ocean-life-15967699e26cbe0d

Factors that limit the type of life forms able to live in an ocean environment include temperature, sunlight, pressure, oxygen concentration and nutrient availability. Because of its many varied attributes, the ocean offers a unique home to aquatic life.

www.reference.com/article/ocean-current-2d350464d21846c8

An ocean current is "any more or less permanent or continuous, directed movement of ocean water that flows in one of the Earth's oceans," according to ScienceDaily.com. Currents are created by a variety of forces.

www.reference.com/article/four-oceans-585c3681b62a8fe

The original four oceans are the Pacific, Atlantic, Indian and Arctic; however, the International Hydrographic Organization recognized the Southern Ocean as the fifth ocean on Earth in the spring of 2000.