What is Cell theory?
'''Cell theory''' is the historic [[scientific theory]], now accepted by everyone, that living [[organism]]s are made up of [[cell]]s. Cells are the basic unit of structure in all organisms and the basic unit of [[reproduction]]. == History == With many improvements made to [[microscope]]s over time, [[magnification]] technology advanced enough to discover cells in the [[17th century]]. This discovery was made by [[Robert Hooke]] and began [[cell biology]], the scientific study of cells. Cell theory was eventually made in 1838. This is usually credited to [[Matthias Schleiden]] and [[Theodor Schwann]].<ref>{{Cite web|title=Cell Theory|url=https://education.nationalgeographic.org/resource/cell-theory|url-status=live|archive-url=https://web.archive.org/web/20221122162054/https://education.nationalgeographic.org/resource/cell-theory|archive-date=22 Nov 2022|access-date=25 Nov 2022|website=National Geographic}}</ref> ==References== {{reflist}} {{Biology-stub}} [[Category:Cell biology]]