Definition of "biogenesis"
biogenesis
noun
usually uncountable, plural biogeneses
The principle that living organisms are produced only from other living organisms.
Quotations
And thus the hypothesis that living matter always arises by the agency of pre-existing living matter, took definite shape; […] It will be necessary for me to refer to this hypothesis so frequently, that, to save circumlocution, I shall call it the hypothesis of Biogenesis; and I shall term the contrary doctrine—that living matter may be produced by not living matter—the hypothesis of Abiogenesis.
1870 September 17, [Thomas Henry Huxley], “The President’s Address”, in The Athenæum: Journal of English and Foreign Literature, Science, the Fine Arts, Music and the Drama, number 2238, London: Printed by Edward J. Francis, Took's Court, Chancery Lane, published at the office, 20, Wellington Street, Strand, W.C., by John Francis. [...], page 374, columns 2–3
It is likely that the long evolutionary trajectory of Mycoplasma went from a reductive autotroph to oxidative heterotroph to a cell-wall–defective degenerate parasite. This evolutionary trajectory assumes the simplicity to complexity route of biogenesis, a point of view that is not universally accepted.
2013 March–April, Harold J. Morowitz, “The Smallest Cell [letter]”, in American Scientist, volume 101, number 2, archived from the original on 4 January 2017, page 83