Rujukan روجوعن Kehidupan

  1. ↑
  2. ↑
  3. ↑
  4. ↑
  5. ↑ Tyrell, Kelly April (18 December 2017). "Oldest fossils ever found show life on Earth began before 3.5 billion years ago". University of Wisconsin-Madison. Dicapai 18 December 2017. 
  6. ↑ Schopf, J. William; Kitajima, Kouki; Spicuzza, Michael J.; Kudryavtsev, Anatolly B.; Valley, John W. (2017). "SIMS analyses of the oldest known assemblage of microfossils document their taxon-correlated carbon isotope compositions". PNAS. 115 (1): 53–58. Bibcode:2018PNAS..115...53S. doi:10.1073/pnas.1718063115. PMC 5776830 . PMID 29255053. Dicapai 19 December 2017. 
  7. ↑ Wade, Nicholas (25 July 2016). "Meet Luca, the Ancestor of All Living Things". The New York Times. Diarkibkan daripada yang asal pada 28 July 2016. Dicapai 25 July 2016. 
  8. ↑ Chapter-5, The Fundamental Unit of Life. Monika Mehan. Scribd.
Rencana berkaitan biologi ini rencana tunas. Anda boleh membantu Wikipedia dengan mengembangkannya.
  1. ↑ The "evolution" of viruses and other similar forms is still uncertain. Therefore, this classification may be paraphyletic because cellular life might have evolved from non-cellular life, or polyphyletic because the most recent common ancestor might not be included.
  2. ↑ Infectious protein molecules prions are not considered living organisms, but can be described as "organism-comparable organic structures".
  3. ↑ Certain specific organism-comparable organic structures may be considered subviral agents, including virus-dependent entities: satellites and defective interfering particles, both of which require another virus for their replication.