Anter
- He aha nā hanauna ʻokoʻa?
- Nā pōmaikaʻi o ka hanauna hanauna hou
- Nā laʻana o nā hanauna ʻē aʻe i nā holoholona
- ʻO ka hana hou ʻana i nā nalo meli
- ʻO Crustaceans me ka hanauna hanauna hou
- Hoʻopiʻi hihi
- Nā pepelu hānai e nā hanauna ʻē aʻe
KA hanauna hanauna hou, ʻike ʻia ʻo heterogony, kahi hoʻolālā maʻamau i nā holoholona a me ka hoʻololi o kahi pōʻaiapuni me ka hānau kolohe a ukali ʻia e kekahi pōʻaiapili asexual. Aia kekahi mau holoholona i loaʻa ka moekolohe akā, i kekahi manawa i ko lākou ola, mālama i ka hānau asexually, ʻoiai ʻaʻole ia he manaʻo e hoʻololi lākou i kekahi ʻano hana kope me kekahi.
ʻOi aku ka maʻamau o ka alternation Generational i nā mea kanu, akā hoʻomaʻamaʻa kekahi mau holoholona iā ia. No laila, i kēia ʻatikala na PeritoAnimal, e hohonu mākou i kēia ʻano hana hānai a hāʻawi i kekahi laʻana hoʻohālike pākahi kuapo o nā hanauna i nā holoholona nāna e hoʻomaʻamaʻa.
He aha nā hanauna ʻokoʻa?
ʻO ka hana hou ʻana e ka hakahaka o nā hanauna a i ʻole heterogony kekahi ʻano hānai maʻamau loa i nā mea kanu pua pua ʻole. ʻO kēia mau mea kanu nā bryophytes a me nā ferns. I loko o kēia hoʻolālā hoʻohua, hoʻohou ʻia ka hānau kolohe a me ka hānau hou ʻana ʻole. I ka hihia o nā mea kanu, eia ka manaʻo e loaʻa iā lākou kahi pae sporophyte a me kahi pae i kapa ʻia ʻo gametophyte.
I ka wā o ka pae sporophyte, e hua mai ka mea kanu i nā spores e hoʻoulu i nā mea kanu makua genetically like me ka mea kumu. Ma pae gametophyte, hana ka mea kanu i nā gametes kāne a wahine hoʻi, ke hui lākou i nā gametes ʻē aʻe mai nā mea kanu ʻē aʻe, e hoʻoulu i nā mea hou me ka ukana ʻokoʻa.
Nā pōmaikaʻi o ka hanauna hanauna hou
ʻO ka hana hou ʻana e ka hakahaka o nā hanauna hōʻiliʻili i nā mea maikaʻi o ka moekolohe a me ka hānau hou ʻole. Ke hana kope ʻia kahi mea ola ma o ka hoʻolālā moekolohe, loaʻa iā ia kāna keiki i kahi ʻano ʻē aʻe waiwai nui, kahi e makemake ai i ka hoʻololi a me ke ola o nā lāhui. Ma ka ʻaoʻao ʻē aʻe, ke hana kope ʻia kahi mea ola e like me asexual, ʻoi aku ka nui o nā poʻe hou i ʻike ʻia i loko o kahi manawa pōkole.
No laila, kahi mea kanu a holoholona paha e hānai i nā hanauna ʻē aʻe e hoʻokō i ka hanauna genetically rich a me kahi helu nui. me ka hoʻonui ʻana i kou manawa kūpono e ola ai.
Nā laʻana o nā hanauna ʻē aʻe i nā holoholona
ʻO ka hanauna hanauna hou i nā holoholona invertebrate e like me nā pepeke paha ka laʻana maʻamau a nui loa, akā hiki i ka jellyfish hānau ke ukali i kēia hoʻolālā.
A laila, hōʻike mākou i ka ʻano o nā holoholona me ka hoʻohua hoʻohuli hanauna:
ʻO ka hana hou ʻana i nā nalo meli
ʻO ka hana hou ʻia ʻana o nā nalo meli a i ʻole nā lūlū e nā hanauna ʻē aʻe. ʻO kēia mau holoholona, kaukaʻi ʻia i ka manawa nui kahi e loaʻa ai iā lākou iho, e hānau hou lākou ma o ka hoʻolālā moekolohe a pilina ʻole paha. noho ʻelua ma a eusocities a i ʻole ke kaiāulu maoli, i hoʻonohonoho ʻia i nā castes, i kēlā me kēia mea e hoʻokani nei i kahi kuleana kūʻokoʻa a koʻikoʻi hoʻi. He mōʻī wahine nā kope a me nā nalo meli e kope hoʻokahi i ko lākou wā e ola nei, ma mua o ke ʻano o ka hive a anthill hou, e mālama ana i ka sperm i loko o kona kino i kahi organ i kapa ʻia he spermtheca. ʻO kāna mau kaikamahine āpau ka hopena o ka hui ʻana o nā hua a ka mōʻī wahine a mālama ʻia ka sperm, akā i kekahi manawa, ke oʻo ke kaiāulu (ma kahi o hoʻokahi makahiki i ka hihia o nā pi a ʻehā mau makahiki i ka hihia o nā ants), ʻo ka mōʻī wahine. e hoʻomoe i nā hua manu ʻole I ka ʻoiaʻiʻo, aia kekahi mau ʻano seme i ʻike ʻole ʻia kahi kāne ʻole, a he 100% asexual ka hānau ʻana.
ʻO Crustaceans me ka hanauna hanauna hou
ʻO ʻoe genust crustaceans Daphnia loaʻa kope hou. I ka wā o ke kauwela a me ke kauwela, ke maikaʻi nā kūlana o ke kaiapuni, hānau hou ʻo daphnia i ka moekolohe, e ulu ana i nā wahine wale nō e ulu i loko o ko lākou kino e pili ana i ka hoʻolālā ovoviviparous. Ke hoʻomaka ka hoʻoilo a i ka wā kahi maloʻo ʻole, hana nā wahine i nā kāne parthenogenesis (kahi ʻano hana kope asexual). ʻAʻole ʻoi aku ka nui o nā kāne i ka heluna kanaka o daphnia ma mua o ka wahine. I nā ʻano he nui, ʻike ʻole ʻia ka male kāne e like me ka mea i ʻike ʻole ʻia.
Hoʻopiʻi hihi
Ka hana kope ʻia o nā jellyfish, kaukaʻi ʻia i ka laha a me ka pae ma kahi e ʻike ai lākou iā lākou iho, e hana ʻia e nā hanauna hou. Ke noho lākou i ka pae polyp, e hana lākou i kahi kolone nui e hānau kope asexual, e hana ana i nā polyps hou aʻe. I kekahi manawa, e hoʻohua ka polyps i nā jellyfish ola manuahi, ke hiki lākou i ke kanaka makua, e hoʻohua i nā wahine a me nā kāne, e hāpai ana i ka hānau kolohe.
Nā pepelu hānai e nā hanauna ʻē aʻe
ʻO ka hope, ka aphid Phylloxera vitifoliae, hana kolohe i ka moekolohe i ka hoʻoilo, e hana ana i nā hua e hāpai i nā wahine i ka puna. E hānau hou kēia mau wahine e parthenogenesis a hiki i ka hāʻule hou ʻana o ka mahana.
Inā makemake ʻoe e heluhelu hou aku i nā ʻatikala e like me Hoʻololi nā hanauna i nā holoholona, Paipai mākou iā ʻoe e komo i kā mākou Curiosities ʻāpana o ka honua holoholona.