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  2. Prochloron - Wikipedia

    en.wikipedia.org/wiki/Prochloron

    Prochloron (from the Greek pro (before) and the Greek chloros (green) ) is a genus of unicellular oxygenic photosynthetic prokaryotes commonly found as an extracellular symbiont on coral reefs, particularly in didemnid ascidians (sea squirts).

  3. HTTP 402 - Wikipedia

    en.wikipedia.org/wiki/HTTP_402

    HTTP Status Code 402, also known as "Payment Required," is a standard response code in the Hypertext Transfer Protocol (HTTP). It is part of the HTTP/1.1 protocol defined by the Internet Engineering Task Force (IETF) in the RFC 7231 [ 1 ] specification.

  4. All India Secondary School Examination - Wikipedia

    en.wikipedia.org/wiki/All_India_Secondary_School...

    All India Secondary School Examination, commonly known as the class 10th board exam, is a centralized public examination that students in schools affiliated with the Central Board of Secondary Education, primarily in India but also in other Indian-patterned schools affiliated to the CBSE across the world, taken at the end of class 10. The board ...

  5. Mesityl oxide - Wikipedia

    en.wikipedia.org/wiki/Mesityl_oxide

    129.5 °C (265.1 °F; 402.6 K) Solubility in water. 3% (20°C) [1] Solubility in other solvents ... Download as PDF; Printable version; In other projects Wikimedia ...

  6. Acetyltributylcitrate - Wikipedia

    en.wikipedia.org/wiki/Acetyltributylcitrate

    This article about an ester is a stub. You can help Wikipedia by expanding it.

  7. Punched card input/output - Wikipedia

    en.wikipedia.org/wiki/Punched_card_input/output

    An IBM 80-column punched card of the type most widely used in the 20th century IBM 1442 card reader/punch for 80 column cards. A computer punched card reader or just computer card reader is a computer input device used to read computer programs in either source or executable form and data from punched cards.

  8. Comparison of Dewey and Library of Congress subject ...

    en.wikipedia.org/wiki/Comparison_of_Dewey_and...

    Where a class in one system maps to several classes in other system, it will be listed multiple times (e.g. DDC class 551). Additional information on these classification plans is available at: Dewey Decimal Classification —high level categories, with links to lower level categories

  9. Acritarch - Wikipedia

    en.wikipedia.org/wiki/Acritarch

    Acritarchs were originally defined as non-acid soluble (i.e. non-carbonate, non-siliceous) organic-walled microfossils consisting of a central cavity, and whose biological affinities cannot be determined with certainty.