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  2. Cell (biology) - Wikipedia

    en.wikipedia.org/wiki/Cell_(biology)

    The cell is the basic structural and functional unit of all forms of life. Every cell consists of cytoplasm enclosed within a membrane; many cells contain organelles, each with a specific function. The term comes from the Latin word cellula meaning 'small room'. Most cells are only visible under a microscope.

  3. Cell theory - Wikipedia

    en.wikipedia.org/wiki/Cell_theory

    2. The cell is the most basic unit of life. Schleiden's theory of free cell formation through crystallization was refuted in the 1850s by Robert Remak, Rudolf Virchow, and Albert Kolliker. [5] In 1855, Rudolf Virchow added the third tenet to cell theory. In Latin, this tenet states Omnis cellula e cellula. This translated to: 3.

  4. Life - Wikipedia

    en.wikipedia.org/wiki/Life

    The cell is the structural and functional unit of life. Smaller organisms, including prokaryotes (bacteria and archaea), consist of small single cells. Larger organisms, mainly eukaryotes, can consist of single cells or may be multicellular with more complex structure. Life is only known to exist on Earth but extraterrestrial life is thought ...

  5. Biology - Wikipedia

    en.wikipedia.org/wiki/Biology

    Cell theory states that cells are the fundamental units of life, that all living things are composed of one or more cells, and that all cells arise from preexisting cells through cell division. [41] Most cells are very small, with diameters ranging from 1 to 100 micrometers and are therefore only visible under a light or electron microscope. [42]

  6. Cell biology - Wikipedia

    en.wikipedia.org/wiki/Cell_biology

    A cell is the basic unit of life that is responsible for the living and functioning of organisms. [3] Cell biology is the study of the structural and functional units of cells. Cell biology encompasses both prokaryotic and eukaryotic cells and has many subtopics which may include the study of cell metabolism , cell communication , cell cycle ...

  7. Cellular component - Wikipedia

    en.wikipedia.org/wiki/Cellular_component

    Cells are the structural and functional units of life. [1] The smallest organisms are single cells, while the largest organisms are assemblages of trillions of cells. DNA, double stranded macromolecule that carries the hereditary information of the cell [ 2 ] and found in all living cells; [ 3 ] each cell carries chromosome(s) having a ...

  8. 22 of the Smallest Towns in America - AOL

    www.aol.com/22-smallest-towns-america-113654371.html

    Population: 932 Located in a region that was once used as hunting grounds by the Pawnees, Red Cloud has since become a fascinating place for literary buffs thanks to one of its most famous past ...

  9. Nanobe - Wikipedia

    en.wikipedia.org/wiki/Nanobe

    A nanobe (/ ˈ n æ n oʊ b, ˈ n eɪ n oʊ b /) [1] is a tiny filamental structure first found in some rocks and sediments.Some scientists hypothesize that nanobes are the smallest form of life, ⁠ 1 / 10 ⁠ the size of the smallest known bacteria.