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  2. 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 ...

  3. 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.

  4. 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.

  5. Everything at Old Navy is still 50% off for extended Cyber ...

    www.aol.com/lifestyle/everything-at-old-navy-is...

    Old Navy is 50% off during Cyber Monday. Get sweaters, coats, baby clothing, and jeans all for half price.

  6. Joe Biden turns 82 years old, a first for a sitting US president

    www.aol.com/news/joe-biden-turns-82-years...

    (Reuters) - U.S. President Joe Biden turned 82 years old on Wednesday, an age milestone never before reached by a sitting commander in chief. The president had no public events on his Wednesday ...

  7. 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 ...

  8. This watch was carved from a meteorite that hit Earth a ...

    www.aol.com/watch-carved-meteorite-hit-earth...

    The reason may be, at least partly, price. Toledano declined to disclose how much the fragment used for the B/1M cost, but he noted that raw meteorite can sell for more, per gram, than gold.

  9. Quizlet - Wikipedia

    en.wikipedia.org/wiki/Quizlet

    Quizlet was founded in 2005 by Andrew Sutherland as a studying tool to aid in memorization for his French class, which he claimed to have "aced". [ 6 ] [ 7 ] [ 8 ] Quizlet's blog, written mostly by Andrew in the earlier days of the company, claims it had reached 50,000 registered users in 252 days online. [ 9 ]