Misalai 10 na Dabbobin Ovoviviparous - Encyclopedia

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Misalan dabbobin ovoviviparous

The dabbobin ovoviviparous sune wadanda ke tasowa a cikin kwai kafin a haife su. Amma abin da ke bambanta ovoviviparous shine kwai ya kasance a cikin mahaifiyar har sai tayi tayi girma sosai. Wannan shine dalilin da yasa dabbar ke fitowa daga cikin kwan nan da nan bayan an kwanta kwan. Yana iya ma kyankyashe daga kwai a cikin jikin mahaifiyar sannan daga baya ta haihu.

Yana da mahimmanci a rarrabe dabbobin ovoviviparous daga wasu dabbobin da suma ke haɓaka kwayayen su a cikin ƙwai, da oviparous. Na karshen suna saka kwai a cikin yanayin waje a farkon ci gaban amfrayo. A takaice dai, amfrayo na tasowa a waje da jikin mahaifiyar.

Hakanan yakamata a rarrabe su daga dabbobin viviparous, wadanda sune amfrayo ke tasowa a cikin jikin mahaifiyar, kamar dabbobi masu shayarwa. Kodayake kwayar halittar kwayar halitta kuma tana haɓaka amfrayo a ciki, bambancin shine tunda tunda harsashi ya rufe shi, mahaifiyar ba zata iya ciyar da shi kai tsaye ba.

Wato a ce:

Ma'anar gama gari tsakanin ovoviviparous da oviparous: An kare amfrayo da harsashi.
Mahimmin ma'ana tsakanin ovoviviparous da viviparous: Haɗuwa tana faruwa a cikin jikin mahaifiyar, inda amfrayo ke haɓaka.

Misalan dabbobin ovoviviparous

Farin shark: Nau'in babban kifin shark. Yana da bakin arched. Dole ne ta yi iyo koyaushe (ba za ta iya tsayawa ba) don numfashi da yin iyo, tunda ba shi da mafitsarar iyo. Amfrayo yana cin abinci ta cikin gwaiduwa. Wannan kifin ba ya yin ƙwai amma ƙaramin ƙyanƙyashe a cikin uwa sannan a haife shi ya bunƙasa.
Boa constrictor: Mai rarrafe wanda zai iya auna tsakanin mita 0.5 da 4, gwargwadon nau'ikan nau'ikan. Bugu da kari, mata sun fi maza girma. Yana da ja da fari, ko ja da launin ruwan kasa, tare da bambance -bambancen da suka danganci gandun dajin. Yana saduwa a lokacin damina. Hawansa yana ɗaukar watanni da yawa. Kyankyasar ƙwai yana faruwa a cikin jikin mahaifiyar, yana ƙyanƙyashe zuriyar da ta riga ta haɓaka.
Ruwan zuma: Nau'in ƙaramin kifin shark, wanda ya kai tsawon mita sama da ɗaya. An sifanta shi da samun kashin baya mai guba a saman jiki. Ita ce mafi yawan nau'in kifin shark amma tare da taƙaitaccen rarrabawa. Zubar da haihuwa ta dogara ne da girman mace, tunda abin da aka saba da shi shine 1 zuwa 20 tayi ta kowane ciki, amma manyan mata na iya samun ɗimbin yawa. An haife su daga kwan.
Stingray (katon bargo): An bambanta shi da sauran nau'in saboda ba shi da guba mai guba. Hakanan saboda girman sa. Yana zaune a cikin teku mai matsakaici. Yana da ikon tsalle daga cikin ruwa. A lokacin haifuwa, maza da yawa suna shari'ar mace. Domin ɗayansu ya sami kwaɗayi, dole ne ya kashe masu fafatawa da shi. An kiyasta cewa lokacin da ƙwai ya kasance a cikin mace zai iya wuce watanni goma sha biyu. Suna da yaro ɗaya ko biyu a kowane ɗaki.
Anaconda: Halittar maciji mai takurawa. Yana iya auna tsawon mita goma. Kodayake baya rayuwa cikin rukuni amma a cikin keɓantacciyar hanya, lokacin da mace ke son hayayyafa tana iya jan hankalin namiji ta hanyar sakin pheromones. A kowane juji tsakanin matasa 20 zuwa 40 ana haife su, kusan tsawon cm 60.
Suriname da: Amphibian wanda ke zaune a wurare masu zafi da na wurare masu zafi. An sifanta shi da tsintsiyar jikinsa da madaidaiciya, kai mai kusurwa uku. Launinsa ɗan koren launin toka ne. Dabbobi ne na musamman na ovoviviparous, tunda hadi yana faruwa a wajen mahaifiyar. Da zarar taki, macen ta sake rufe ƙwai a jikinta. Ba kamar sauran dabbobi masu rarrafe ba, waɗanda aka haife su a matsayin tsutsa sannan kuma ake yin metamorphosis, wannan toad yana aiwatar da ci gaban tsutsa a cikin kwai, kuma mutanen da aka haifa sun riga sun sami siffarsu ta ƙarshe.
Platypus: Ana daukarsa a matsayin mai shayarwa, amma tana saka ƙwai, don haka ana iya rarrabe shi azaman ovoviviparous. Dabba ce mai ruwa-ruwa wacce ke zaune a gabashin Australia da Tasmania. An siffanta ta musamman da kamaninta, tare da hancin da yayi kama da ƙugiyar agwagwa, wutsiya mai kama da beaver, da kafafu masu kama da otter. Yana da guba.
Jackson Trioceros: Dabbobi na hawainiyar ovoviviparous. Tana da ƙahoni uku, wanda shine dalilin da yasa ake kiranta "trioceros". Yana zaune a Gabashin Afirka. An haifi yaran a cikin litattafai tsakanin kwafi 8 zuwa 30, tare da yin ciki na tsawon watanni shida.
Hippocampus (seahorse): Wani nau'in ovoviviparous ne, tunda ƙwai baya girma a cikin jikin mace amma a jikin namiji. Haihuwa na faruwa yayin da mace ke saka ƙwai cikin jakar namiji. Jakar ta yi kama da ta marsupials, wato ita ce waje da waje.
Lution (Shingles na Crystal): Dabba ce ta musamman, tun da ƙugiyar bata da kafa. Wato a kamanninsa yana kama da maciji. Duk da haka, an san cewa ƙadangare ne domin akwai ɓoyayyun kwarangwal a jikinsa waɗanda ke da halayen ƙadangare. Hakanan, tana da fatar ido na motsi, sabanin macizai. Dabbobi masu rarrafe suna rayuwa a Turai kuma suna iya auna har zuwa 40 cm, ko 50 cm a cikin mata. Sake haifuwa yana faruwa a bazara. Bayan watanni 3 zuwa 5 na yin ciki, mace tana saka ƙwai tare da ƙwayayen samari a ciki, kuma kyankyasar na faruwa nan da nan.