Dabbobi masu raye - Misalai da Halaye

Wadatacce

• Menene masu ɗaukar rayuwa
• Ci gaban mahaifa a cikin dabbobi
• Ire -iren haifuwar masu raye -raye
• Halayen masu raye
• 1. Tsarin ciki
• 2. Mahaifa
• 3. Canje -canje a jiki
• 4. Yan hudu
• 5. Ilmin uwa
• 6. Marsupials
• Misalan Dabbobi Masu Cutar Rayuwa - Dabbobi masu shayarwa
• Misalan Dabbobin Dabbobi Masu Rayuwa
• Misalan dabbobi masu shayarwa na ruwa:
• Misalin mai shayarwa mai shawagi na viviparous:
• Misalan dabbobin da ke raye - kifayen da ke raye
• Misalan Dabbobin Viviparous - Viviparous Amphibians

Viviparity shine wani nau'i na haifuwa wanda ake samu a yawancin dabbobi masu shayarwa, ban da wasu dabbobi masu rarrafe, kifi da masu tsibi. Dabbobin viviparous dabbobi ne da aka haife su daga mahaifar mahaifiyarsu. Mutane, alal misali, masu ɗaukar rayuwa ne.

Bayan mace ta yi aure ko ta yi jima'i da namiji iri ɗaya, za a iya ƙirƙirar sabon halitta, wanda a ƙarshen aiwatar da ciki, zai gaji halayen iyayensa.

Ci gaba da karanta wannan labarin PeritoAnimal wanda zamuyi bayani dalla -dalla Dabbobin Viviparous - Misalai da Halaye. Kyakkyawan karatu.

Menene masu ɗaukar rayuwa

Dabbobin viviparous sune waɗanda ke aiwatar da nasu ci gaban amfrayo a cikin mahaifa, ta hanyar samun isasshen iskar oxygen da abubuwan gina jiki har zuwa lokacin haihuwa, lokacin da ake ɗaukar su cikakke da haɓaka. Don haka, muna iya cewa dabbobi ne da aka haife su daga mahaifar uwa, kuma ba daga ƙwai ba, waɗanda dabbobi ne masu ƙyalli.

Ci gaban mahaifa a cikin dabbobi

Don fahimtar menene dabbobin da ke raye, yana da mahimmanci a yi magana game da ci gaban amfrayo, wanda shine lokacin daga hadi zuwa haihuwar sabon mutum. Don haka, a cikin haihuwar dabbobi, zamu iya bambancewa iri uku na ci gaban amfrayo:

• Dabbobi masu rai: bayan hadi na ciki, amfrayo na tasowa a cikin wani tsari na musamman na jikin mahaifa, wanda ke kare su da ciyar da su har sai sun samu cikakken tsari da shirye su haihu.
• Dabbobin Oviparous: a wannan yanayin, hadi na ciki ma yana faruwa, duk da haka, ci gaban amfrayo yana faruwa a wajen jikin mahaifiyar, a cikin kwai.
• Dabbobin Ovoviviparous: Hakanan ta hanyar hadi na cikin gida, amfrayo na dabbobin ovoviviparous suna haɓaka a cikin kwai, kodayake a wannan yanayin kwai ma yana zaune a cikin jikin iyaye, har sai kyankyasai ya faru kuma, saboda haka, haihuwar zuriya.

Ire -iren haifuwar masu raye -raye

Baya ga bambance nau'ikan ci gaban mahaifa daban -daban, ya kamata mu sani cewa akwai nau'ikan iri daban -daban tsakanin masu raye:

• Dabbobin mahaifa: sune waɗanda ke haɓaka a cikin mahaifa, gabobin da ke haɗe da mahaifa wanda ke ƙaruwa yayin ciki don ba da damar tayi. Misali zai zama ɗan adam.
• Marsupial viviparous: sabanin sauran dabbobi masu shayarwa, marsupials ana haifarsu ba tare da sun haɓaka ba kuma suna ƙarewa a cikin marsupium, jakar waje wacce ke cika aikin kwatankwacin mahaifa. Mafi sanannun sanannen dabbar da ke rayuwa ta marsupial shine kangaroo.
• Ovoviviparous: cakuda ce tsakanin viviparism da oviparism. A wannan yanayin, mahaifiyar tana sanya ƙwai a cikin jikinta, inda za su ci gaba har sai sun cika. Za a iya haifar matasa a cikin jikin mahaifiyar ko a waje.

Halayen masu raye

1. Tsarin ciki

Dabbobin viviparous sun bambanta da dabbobin oviparous waɗanda ke sa ƙwai "na waje", kamar yawancin tsuntsaye da dabbobi masu rarrafe. Dabbobi masu viviparous suna da tsarin ci gaba da haɓakawa fiye da dabbobin oviparous, waɗanda ake kira placental viviparism, wato, dabbobin da tayin su masu digiri a cikin jaka "mahaifa" a cikin uwa har sai uwar ta balaga, babba da ƙarfin da za a haifa ta tsira da kanta a waje.

2. Mahaifa

Wani muhimmin siffa shi ne cewa rayayyun dabbobin da ke rayuwa ba su da harsashi mai wuya. Mahaifa mahaifa ce da ke ɗauke da wadataccen jini mai ƙarfi wanda ke kewaye da mahaifa na mata masu juna biyu. Ana ciyar da tayi ta hanyar layin da ake kira cibiya. Lokaci tsakanin hadi da haihuwar mai rayayyun halittu ana kiranta lokacin gestation ko gestation kuma ya bambanta dangane da nau'in.

3. Canje -canje a jiki

Ofaya daga cikin mahimman fannoni tsakanin dabbobi masu shayarwa kamar dabbobin da ke ɗauke da rayayyu shine mahimmancin canjin da mata ke sha bayan an haƙa ƙwai, inda lokacin fara ciki ko ciki ke farawa. A wannan matakin, mahaifa tana ƙaruwa da girman gwargwadon girman zygote, kuma mace ta fara fuskantar jerin duka canje -canje na ciki da na waje cikin cikakkiyar shiri na halitta don wannan duka tsari.

4. Yan hudu

Mafi yawan dabbobin viviparous quadrupeds ne, wannan yana nufin hakan buƙatar kafafu huɗu don tsayawa, tafiya da motsawa.

5. Ilmin uwa

Yawancin uwaye a tsakanin masu shayarwa suna da ƙarfi, kunkuntar ilhamar uwa don ciyarwa da kare zuri'arsu har sai sun tsira da kansu. Mace za ta san daidai lokacin da wannan lokacin zai faru.

6. Marsupials

A duniyar dabbobi kuma akwai wani nau'in viviparism, wannan shine mafi ƙarancin kowa. Muna magana ne game da marsupials, kamar kangaroo.Marsupials halittu ne da ke haifar da zuriyarsu a cikin yanayin da ba su balaga ba sannan kuma su karɓi zuriyar a cikin jakunkunan da suke cikin ciki inda suke shayar da su. Yaran suna ci gaba da zama a wannan wuri har sai sun cika kuma ba sa buƙatar ƙarin madara daga mahaifiyarsu don tsira.

Misalan Dabbobi Masu Cutar Rayuwa - Dabbobi masu shayarwa

Yanzu da kuka san menene dabbobin viviparous, muna nuna cewa kusan dukkanin dabbobi masu shayarwa suna da ƙwayoyin cuta. Akwai 'yan kaɗan kawai na dabbobi masu shayarwa, waɗanda ake kira monotremes, waɗanda manyan wakilan su ke echidna da platypus.

Misalan Dabbobin Dabbobi Masu Rayuwa

• Kare
• Cat
• zomo
• Doki
• saniya
• Alade
• Kifi
• Leon
• Chimpanzee
• Giwa

Misalan dabbobi masu shayarwa na ruwa:

• Dabbar dolphin
• Whale
• maniyyi whale
• orca
• Narwhal

Misalin mai shayarwa mai shawagi na viviparous:

• Jemage

Misalan dabbobin da ke raye - kifayen da ke raye

Daga cikin kifayen viviparous na yau da kullun - kodayake a zahiri su dabbobin ovoviviparous ne - akwai nau'ikan guppies, platys ko molineses:

• Poecilia na Reticular
• Poecilia sphenops
• shayari na wingei
• Xiphophorus maculatus
• Xiphophorus helleri
• Dermogenys pusillus
• Nomorhamphus liemi

Misalan Dabbobin Viviparous - Viviparous Amphibians

Kamar yadda yake a shari'ar da ta gabata, da masu amphibians ba na kowa bane, amma mun sami dabbobin wakilci guda biyu a cikin tsarin Caudata:

• dan kasuwa
• Salamander

Yanzu da kuka san menene masu raye -raye kuma kun san manyan halayensu, kuna iya sha'awar wannan labarin game da sauye -sauyen tsararraki a cikin dabbobi.

Idan kuna son karanta ƙarin labarai makamantansu Dabbobi masu raye - Misalai da Halaye,, muna ba da shawarar cewa ku shiga ɓangaren Curiosities na duniyar dabbobi.