Ubulili
Ummomo
Ubulili (noma ubuliliqobo) buyinkondolo yomchazampilo yesiphili esizalayo yokukhiqiza amalilizana we-anisogamy eyodwa noma ezimbili zobungako obungalingani: kungaba owesilisa noma obesifazane.[1][2][3] Ngalokho, indlela yomjinjo weziphili, ngobulili bazo, yaziwa ngokuthi ubulili besilisa nobulili besifazane. Lapho kunesenzo socansi, amalilizana esilisa nesifazane, amalotha neqanda, kufanele akhande zygote, okuyiyan ezokhula kube inzalo ezofuza izinkondolo zomzali gamunye. Ngokuvumelana, isiphili ezikhiqiza amalilizana amancane, okungamalotha, kuthiwa esesilisa, kuyilapho isiphili esikhiqiza amalilizana amakhulu, amaqanda sona sibizwa esesifazane.[4] Bese isiphili esikhiqiza zombili izinhlobo zamalilizana sona sibizwa incukumbili.[2][5]
Amaphatho
[hlela | Hlela umthombo]- ↑ Mills A (2018). "Sex and Reproduction". Biology of Sex (in i-English). Toronto: University of Toronto Press. p. 43. ISBN 978-1-4875-9337-7.
In sexually reproducing animals, there are two sexes, the male and the female. [...] We have already defined male and female based on gonads and on the type of gametes produced in those gonads, either eggs or sperm.
- 1 2 Purves WK, Sadava DE, Orians GH, Heller HC (2000). Life: The Science of Biology. Sunderland, Mass.: Sinauer Associates; W.H. Freeman & Co. p. 736. ISBN 978-0-7167-3873-2.
A single body can function as both male and female. Sexual reproduction requires both male and female haploid gametes. In most species, these gametes are produced by individuals that are either male or female. Species that have male and female members are called dioecious (from the Greek for 'two houses'). In some species, a single individual may possess both female and male reproductive systems. Such species are called monoecious ('one house') or hermaphroditic.
- ↑ De Loof, Arnold (2018). "Only two sex forms but multiple gender variants: How to explain?". Communicative & Integrative Biology 11 (1). doi:10.1080/19420889.2018.1427399. ISSN 1942-0889. PMC 5824932. PMID 29497472. http://www.pubmedcentral.nih.gov/articlerender.fcgi?tool=pmcentrez&artid=5824932.
- ↑ Kokko H, Jennions M (2012). [[[:Template:GBurl]] "Sex differences in parental care"] Check
|chapter-url=value (help). In Royle NJ, Smiseth PT, Kölliker M. The Evolution of Parental Care (in i-English). Oxford University Press. p. 103. ISBN 978-0-19-969257-6.The answer is that there is an agreement by convention: individuals producing the smaller of the two gamete typesTemplate:Sndsperm or pollenTemplate:Sndare males, and those producing larger gametesTemplate:Sndeggs or ovulesTemplate:Sndare females.
- ↑ Avise JC (2011). [[[:Template:GBurl]] "Two sexes in one"] Check
|chapter-url=value (help). Hermaphroditism: A Primer on the Biology, Ecology, and Evolution of Dual Sexuality (in i-English). Columbia University Press. pp. 1–7. ISBN 978-0-231-52715-6. Kulandwe ngomhlaka 18 September 2020.