Editing Microfossil (section)

===Plant spores===
{{see also|Cryptospore}}

A [[spore]] is a unit of [[sexual reproduction|sexual]] or [[asexual reproduction]] that may be adapted for [[biological dispersal|dispersal]] and for survival, often for extended periods of time, in unfavourable conditions. Spores form part of the [[Biological life cycle|life cycles]] of many [[plant]]s, [[algae]], [[fungus|fungi]] and [[protozoa]].<ref>{{Cite web |url=http://tolweb.org/tree/home.pages/searchresults.html?cx=009557456284541951685%3A50nf_5tpvuq&cof=FORID%3A9&ie=UTF-8&q=spore&sa=Search |title=Tree of Life Web Project |access-date=5 February 2018 |archive-url=https://web.archive.org/web/20180205184645/http://tolweb.org/tree/home.pages/searchresults.html?cx=009557456284541951685%3A50nf_5tpvuq&cof=FORID%3A9&ie=UTF-8&q=spore&sa=Search |archive-date=5 February 2018 |url-status=live }}</ref> [[Bacterial spore]]s are not part of a sexual cycle but are resistant structures used for survival under unfavourable conditions.