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  1. Nov 18, 2021 · Marine microorganisms are defined by their habitat as microorganisms living in a marine environment, that is, in the saltwater of a sea or ocean or the brackish water of a coastal estuary. A microorganism (or microbe) is any microscopic living organism or virus, that is too small to see with the unaided human eye without magnification.

  2. en.wikipedia.org › wiki › Marine_lifeMarine life - Wikipedia

    Nov 18, 2021 · Marine life, sea life, or ocean life is the plants, animals, and other organisms that live in the salt water of the sea or ocean, 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.

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  4. 4 days ago · A microorganism, or microbe, is an organism of microscopic size, which may exist in its single-celled form or as a colony of cells. The possible existence of unseen microbial life was suspected from ancient times, such as in Jain scriptures from sixth century BC India.

  5. en.wikipedia.org › wiki › AbiogenesisAbiogenesis - Wikipedia

    5 days ago · If the deep marine hydrothermal setting was the site for the origin of life, then abiogenesis could have happened as early as 4.0-4.2 Gya. If the site was at the surface of the Earth, abiogenesis could only have occurred between 3.7 and 4.0 Gya. [72]

  6. en.wikipedia.org › wiki › BiofilmBiofilm - Wikipedia

    5 days ago · Biofilm is characterised by heterogenous environment and the presence of a variety of subpopulations. A biofilm structure is composed of metabolically active (both resistant and tolerant) and non-active cells (viable but not culturable cells and persisters) as well as polymer matrix consisting of polysaccharide, extracellular DNA and proteins.

  7. Nov 01, 2021 · Major groups of Archaea and Bacteria are shown. Archaea | Microbiology Archaea are not known to cause any disease in humans, animals, plants, bacteria, or in other archaea. Although this makes sense for the extremophiles, not all archaea live in extreme environments. Many genera and species of Archaea are mesophiles, so they can live in human and