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  2. Underwater habitat - Wikipedia

    en.wikipedia.org/wiki/Underwater_habitat

    German underwater laboratory, "Helgoland", 2010. Underwater habitats are underwater structures in which people can live for extended periods and carry out most of the basic human functions of a 24-hour day, such as working, resting, eating, attending to personal hygiene, and sleeping. In this context, ' habitat ' is generally used in a narrow ...

  3. Marine life - Wikipedia

    en.wikipedia.org/wiki/Marine_life

    Marine life, sea life, or ocean life is the plants, animals, and other organisms that live in the salt water of seas or oceans, or the brackish water of coastal estuaries. At a fundamental level, marine life affects the nature of the planet. Marine organisms, mostly microorganisms, produce oxygen and sequester carbon.

  4. Category:Underwater habitats - Wikipedia

    en.wikipedia.org/wiki/Category:Underwater_habitats

    Pages in category "Underwater habitats". The following 12 pages are in this category, out of 12 total. This list may not reflect recent changes . Ichthyander Project.

  5. Can these underwater habitats ‘make humans aquatic’? - AOL

    www.aol.com/news/underwater-habitats-humans...

    Vanguard, a 12-meter (40-feet) by 7.5-meter (25-feet) habitat with enough space for three people to stay underwater for up to a week, will be ready to go into the water at DEEP’s UK campus in ...

  6. Marine ecosystem - Wikipedia

    en.wikipedia.org/wiki/Marine_ecosystem

    Marine ecosystems are the largest of Earth 's aquatic ecosystems and exist in waters that have a high salt content. These systems contrast with freshwater ecosystems, which have a lower salt content. Marine waters cover more than 70% of the surface of the Earth and account for more than 97% of Earth's water supply [1][2] and 90% of habitable ...

  7. Coral reef - Wikipedia

    en.wikipedia.org/wiki/Coral_reef

    A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. [1] Most coral reefs are built from stony corals, whose polyps cluster in groups. Coral belongs to the class Anthozoa in the animal phylum Cnidaria, which includes sea anemones and ...

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