Life kalapona ke kahua a me ka ulu ana nā rana

Ke ola kalapona o ka rana, gametogenesis, fertilization a me nā naciiiuo hanana e kalele iho ma na mea he nui mawaho aʻe. Life Aneane pau amphibians hilinaʻi nui ma ka helu o nā mea kanu a me nā mea kolo ma ka loko iʻa, e like me ka pono me ke ea a me ka wai mahana. Rana pee likeʻole kahua o ka hoʻonaʻauao o? Acaeoey, a me larval (hua - embryo - tadpole - rana). Tadpole metamorphosis i loko o kekahi kanaka makua i kekahi o ka loa ana loli 'ma ka kālaimeaola, mai kēia mau loli hoomakaukau koʻana koko kino i ka lepo lakou ola.

? Ac? O nā rana: kiʻi

Ma tailless amphibians, e like me na rana, a toads, metamorphic loli loa haʻi, kokoke kēlā hui, ua Hoʻololi '. Ke kino shape hoʻololi a loa. Ma hope iho o ka helehelena o ka hope a me ka mua wāwae huelo i nā nalo. Chondrocranium tadpole ua auou caiaiai ia e ka lehalehu t iwi poʻo o ke keiki rana. Horny niho i e hoʻohana i ka ai ana i ka tadpole loko kanu nalo, waha a me ka iwi e lawe i ka hou kinona, oi e hoʻomōhala ana i nāʻiʻo o ka olelo, me ka maikaʻi, e hopu nahu, a me nā mea kolo. Elongated AeXIeAaOIePEAaI, typical o herbivores, hoʻopōkole i ke hakuloli i ka carnivorousʻai o ka makua. Ma ka kekahi kahua o ka? Acaeoey o rana halo o mua nalo a me ia maʻiʻaʻai, piʻi pū.

He aha ka hana koke ma hope o fertilization?

Mahope fertilization, o ka hua manu hoʻomaka e neʻe mai kekahi aeea i kekahi kahua ma ka kaʻina hana o ka mahele. Ka mua cleavage o ka holoholona laau Ka hoʻomaka 'ana, a kŰlń ao hoʻopapakū ilalo i ka vegetal laau, ka mahele ana i ka hua i loko o nā blastomeres. Ka lua o ka cleavage i wahi ma ka'ākau, pana pua i ka mua, mahele ana i ka hua ma ka 4 blastomeres. Ke kolu o ka Groove mea ma ka'ākau, pana pua i ka mua elua, i kokoke i ka holoholona mua a hiki i ka vegetal kaupoku. Ua hoʻokaʻawale i ka luna eha uuku pigmented wahi o ka lalo eha. Ma keia kahua, ke embryo i ua 8 blastomeres. Hou māhele e lilo ana i emi mau. E like me ka hopena, unicellular hua i nā hoohuliia i loko o hookahi-aa? Embryo, a ma keia kahua ua kapaia he blastula, i mea nō i loko o ka anu u 8-16 aeea hoʻomaka e loaʻa iā loli-piha lua ka lewa. Ma hope o ka moʻo o ka loli Monolayer blastula hoohuliia mai i loko o nā-Ply embryo (gastrula). Kēia luna 'kaʻina kapa gastrulation. Waena kahua o nā rana ma keia anu u Komo i ke kahua o ka ekolu aiiay papa: ectoderm, mesoderm a me ka endoderm, i mea iʻikeʻia me iniiaiie germ papa. Hope kēia mau papa ekolu hoʻomoe larvae.

Tadpoles (larval ke kahua)

I kekahi kahua o ka? Acaeoey o ka rana ma hope o embryo ka larva, i na lau o ka containment iwi i loko o 2 pule ma hope o fertilization. Ma hope iho o ka ai-i kapaia liberation o ka rana larvae i kapaia tadpoles i mea nui e like me na ia liilii, ma kahi o 5-7 mm o lōʻihi. larvae kino nā he okoa poo, ke kumu a me ka huelo. Ke kūlana o ka naehana'ōnaehana ua pâʻani 'o ia ma nā hui o ka poe liilii, mawaho halo o mua. Maopopo i hanaʻia nā loko tadpole ua hakuloli no ka 'auʻau' ana a me ka hanu, me ka maʻiʻaʻai e ulu i ka wā e hiki mai ana o ka rana, mai o kona puu.

hanana metamorphosis

Wai tadpole undergoes i ka moʻo o ka loli ana e ho'ōla hoohuli ia i loko o ka rana. Iloko o ka metamorphosis o kekahi larval hale a ua hoemiia ia, a me kekahi mau loli. Metamorphosis hoʻokumu pū thyroid hana, hiki ke maheleia i ekolu waeʻano.

1. Hoʻololi i ka nānā aku. Ulu diawahine ia lala, ami hoʻomōhala, he mau manamanalima. Forelimbs, nō i hūnāʻia kūikawā aiiay nā pā, e hele iwaho. Ua hoemiia ka huelo, kona 'ole ua i nā uhaʻiʻia, a ma kona wahi, aohe mea i koe. Mau maka ma ka aoao e neʻe maila i ka luna o kou poʻo, a lilo bulging, i ka'ōnaehana kīloi paʻewa laina nā loko iʻa, kahiko ili ua mao, a me ka mea hou, me ka puu o ka ili glands, e hoʻomōhala ai. Horny ā nalo pu me ka larval ili, e auou caiaiai ka mea, me keʻano aliʻi iwia, mua cartilage a laila iwi. waha nahā i ua me ka nui loa, a mahuahua nui, hiki nui ranaʻai nā mea kolo.

2. Hoʻololi i loko o na'anatomia. Halo o mua hoʻomaka e lilo lākouʻano, a mae, malamalama lilo nui a me ka oi iaea ooieoeiiaeuiiai. AYEIE nā loli ana i loko o ka vascular nenoaiu. Ano, i ka halo o mua i nā hooki i pāʻani i ke kūlana i loko o ka holo ana o ke koko, nui ke koko hoʻomaka e kahe ana i loko o ka ia maʻiʻaʻai. Ua lilo ekolu-o ke keʻena o ka naau. Ke hoʻololi, mai puleʻAmelika, kaʻai a hiki i ka hoʻokahi wale nō carnivorousʻai e loli ai ka alimentary Canal lōʻihi. Ua Ua'opihia a hoʻoluli. Ka waha i lehulehu iwi hoʻomōhala 'ōlelo, piʻi pū, a me ka'ōpū ake e hoi lilo ana i nui. Pronephros auou caiaiai mesospheric puʻupaʻa.

3. Hoʻololi i ka I Aloha Hawaii. Iloko o ka hoʻololi mai larvae i kanaka makua kahua o ka evolution o ka rana me ka hoouka kaua o ka metamorphosis, hoʻololi Aloha Hawaii amphibians. He pinepine mai ai i ka ili no ka lewa, a inflate i ka ia maʻiʻaʻai.

Poloka - he'āhihi hoʻokolohua o ka makua rana

I ka makahiki o ka 12 pule, i ka tadpole i wale he uuku koena o ka huelo, a kohu i ka liʻiliʻi kēia o kekahi kanaka makua, a mea he 16 hebedoma, IeAUPIIe, IAa IO ke hoʻoholo 'ia i ka piha kalapona o ka ulu ana. Hoʻomohala a interrelated ke ano o nā rana, kekahi rana e noho ana ma kiʻekiʻe altitudes paha i loko o ke anu mau mea, ke noho ma ka tadpole ke kahua a pau ka hooilo. Kekahi? Ueo e i kona mau kūlana kahua o ka hoʻonaʻauao o? Acaeoey, a oko mai o ka kuʻuna poʻe.

Poloka lifecycle

Ka hapanui o na rana KamakawiwoʻOle i ka ke anuenue wa pono, ka wā e waikahe me ka wai Reservoir. Tadpoles kona mana mea okoa mai ai nā mākua e lawe ka lanakila o ka nui o ka līoho a me ka mea kanu i loko o ka wai. Hua i loko o ka hana aiiay jelly wahine hoolakolako ma lalo o ka wai, a ma luna o nā mea kanu ke aupuni 'kokoke, a me kekahi manawa mai,ʻaʻole i manao e pili ana i hope. Initially embryos omoʻia kā lākou yolk me ke koe. Once ka embryo ua lilo ia i tadpole, tadpole jelly hoike mai, a hele mai o kona aiiay iwi. Ka hooulu ana o ka rana hua i loko o kekahi kanaka makua pu ma ka helu o ka luna 'loli (ʻano lala hoemi huelo, na nā loko rearrangement, a pela aku). E like me ka hopena, nā mākua holoholona i loko o kona 'ole, I Aloha Hawaii a me ka' ia mea me ka nui loa okoa mai na kuʻina mua o? Acaeoey.