menene dabbobin oviparous

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• menene dabbobin oviparous
• Dabbobi Masu Rayayyiya da Dabbobi Masu Raɗaɗi - Bambance -banbance
• Oviparous:
• Viviparous:
• Misalan dabbobin daji
• Misalan Dabbobi masu shayarwa

A yanayi za mu iya lura da yawa dabarun haihuwa, kuma ɗayansu shine oviparity. Ya kamata ku sani cewa akwai dabbobi da yawa waɗanda ke bin dabarun iri ɗaya, waɗanda suka bayyana da yawa a farkon tarihin juyin halitta fiye da masu ɗaukar rayayyu.

idan kuna son sani menene dabbobin oviparous, menene wannan dabarar haifuwa da wasu misalan dabbobin da ba su da yawa, ci gaba da karanta wannan labarin ta PeritoAnimal. Za ku warware duk shakku kuma ku koyi abubuwa masu ban mamaki!

menene dabbobin oviparous

Kai dabbobin oviparous sune wadanda sa ƙwai da suke ƙyanƙyashe, tunda sun fita daga jikin uwar. Haɗuwa na iya zama na waje ko na ciki, amma kyankyashewa koyaushe yana faruwa a cikin yanayin waje, ba a cikin mahaifiyar uwa ba.

Kai kifi, amphibians, dabbobi masu rarrafe da tsuntsaye, kamar wasu dabbobi masu shayarwa lokaci -lokaci, suna da yawa. Yawanci sukan sa ƙwai a cikin gida masu kariya, inda amfrayo zai bunƙasa a cikin ƙwai sannan ya kyankyashe. wasu dabbobi ne ovoviviparous, wato suna sanya kwai a cikin jiki maimakon a cikin gida kuma ana haife kajin da rai kai tsaye daga jikin mahaifiyar. Ana iya ganin wannan a wasu nau'ikan sharks da macizai.

DA kiwo dabbar oviparous dabarar juyin halitta ce. iya samarwa kwai daya ko dayawa. Kowane kwai gamete ne wanda aka kirkira ta kayan halitta daga mace (kwai) da kayan gado daga namiji (maniyyi). Dole maniyyi ya nemo hanyar zuwa kwai, ko dai a cikin yanayi na ciki (jikin mace), lokacin hadi yana cikin ciki, ko a waje (misali, yanayin ruwa), lokacin hadi na waje.

Da zarar kwai da maniyyi sun hadu, sai mu ce kwan ya hadu kuma ya zama amfrayo wanda zai bunƙasa a cikin kwai. Dabbobi da yawa suna samar da ƙwai da yawa, amma masu rauni sosai, kuma fa'idar wannan dabarar ita ce, ta hanyar haifar da zuriya da yawa, akwai kyakkyawar dama cewa aƙalla ɗayansu zai tsira daga mafarautan. Wasu dabbobin suna samar da ƙwai ƙalilan, amma suna da girma da ƙarfi kuma wannan yana ƙaruwa yiwuwar ci gaban sabon mutum zai zo ƙarshe kuma ya kyankyashe, yana haifar da sabon mutum mai ƙarfi sosai, wanda zai sami ƙarin damar tserewa maharan haifaffen.

Kasancewa mai oviparous shima yana da nasa lahani. Ba kamar dabbobin viviparous da ovoviviparous ba, waɗanda ke ɗauke da zuriyarsu a cikin jikinsu, dabbobin da ba sa rayuwa buƙatar kare ko ɓoye ƙwai a lokacin ci gabanta a cikin tsarin da ake kira gida -gida. Tsuntsaye sukan zauna akan ƙwai don su ji ɗumi. Dangane da dabbobin da ba sa kare gidajensu da himma, koyaushe akwai yuwuwar mai farauta zai same su ya cinye su, don haka yana da matukar mahimmanci a zaɓi madaidaicin gidan nishaɗi da ɓoye ƙwai sosai.

Dabbobi Masu Rayayyiya da Dabbobi Masu Raɗaɗi - Bambance -banbance

DA babban bambanci tsakanin dabbobi masu rarrafe da dabbobi masu rarrafe shi ne cewa dabbobin da ba sa rayuwa a cikin uwa, yayin da dabbobin da ke rayuwa ke samun kowane irin canji a cikin mahaifiyarsu. Don haka, dabbobin da ba su da yawa suna saka ƙwai waɗanda ke haɓakawa da ƙyanƙyashe matasa. Yayin da aka haifi dabbobin viviparous a matsayin matasa masu rai kuma ba sa ƙwai.

Tsuntsaye, dabbobi masu rarrafe, dabbobi masu rarrafe, yawancin kifaye, kwari, molluscs, arachnids da monotremes (dabbobi masu shayarwa tare da halayen reptilian) dabbobi ne masu rarrafe. Yawancin dabbobi masu shayarwa masu shayarwa ne. Don nisantar shakku, muna nuna a jerin fasali wanda ya bambanta oviparous daga dabbobin viviparous:

Oviparous:

• Dabbobi masu kaurin suna samar da kwai da suka balaga kuma suka yi kyankyasai bayan an kore su daga jikin mahaifa;
• Ana iya sa ƙwai riga an yi taki ko ba a haifa ba;
• Haɗuwa na iya zama na ciki ko na waje;
• Ci gaban amfrayo yana faruwa ne a wajen mace;
• Amfrayo na samun abubuwan gina jiki daga kwai;
• Yiwuwar rayuwa ta yi ƙasa.

Viviparous:

• Dabbobin viviparous sun haifi samari, cikakkun dabbobi masu rayayyu;
• Ba sa kwai;
• Haɗin kwai koyaushe yana cikin ciki;
• Ci gaban amfrayo yana faruwa a cikin uwa;
• Yiwuwar rayuwa ta fi girma.

Misalan dabbobin daji

Akwai nau'ikan dabbobi da yawa waɗanda ke yin ƙwai, a ƙasa akwai wasu daga cikinsu:

• tsuntsaye: wasu tsuntsaye kawai suke sakawa kwai daya ko biyu takin, yayin da wasu suka sanya da yawa. Gabaɗaya, tsuntsayen da ke yin ƙwai ɗaya ko biyu, kamar cranes. ba sa dadewa a yanayi. Waɗannan tsuntsayen suna ɗaukar lokaci mai yawa suna kula da yaransu don taimaka musu su tsira. A gefe guda, tsuntsaye cewa sa qwai da yawa, kamar kwari na yau da kullun, suna da ƙimar rayuwa mafi girma, kuma basa buƙatar ciyar da lokaci mai yawa tare da zuriyarsu.
• Amphibians da dabbobi masu rarrafe: kwadi, sabuwa da salamanders duk masu ambaliyar ruwa ne, suna rayuwa a ciki da waje, amma suna buƙatar ta ta kasance mai danshi, da kuma sanya ƙwai, tunda wadannan qwai ba su da kwasfa kuma, a cikin iska, za su bushe da sauri. Dabbobi masu rarrafe, kamar ƙadangare, kada, damisa, kunkuru da macizai, na iya rayuwa a ƙasa ko cikin ruwa, kuma suna saka ƙwai a waje ko a ciki, dangane da nau'in. Da yake ba su saba da kula da gidajensu ba, suna saka ƙwai da yawa don yawan rayuwa ya ƙaru.
• Kifi: duk kifi suna saka kwai cikin ruwa. Kifayen mata suna fitar da kwai a tsakiya da yardar kaina, sanya su cikin tsirrai na ruwa ko jefa su cikin ramin da aka tono. Sai kifin namiji ya saki maniyyi akan ƙwai. Wasu kifaye, irin su cichlids, suna ajiye ƙwai a cikin bakinsu bayan hadi don kare su daga masu farautar su.
• arthropods: yawancin arachnids, myriapods, hexapods da crustaceans waɗanda ke ƙirƙirar ƙungiyar arthropod suna da yawa. Gizo -gizo, masu tsattsauran ra'ayi, kaguwa da asu su ne wasu miliyoyin arthropods waɗanda ke sa ƙwai, da sun sanya daruruwan su. Wasu suna yin ƙwai waɗanda aka yi takinsu ta hanyar hadi na ciki, wasu kuma suna saka ƙwai marasa daɗi waɗanda har yanzu suna buƙatar maniyyi.

Misalan Dabbobi masu shayarwa

Yana da wuya ga dabbobi masu shayarwa su kwan ƙwai. Ƙananan ƙungiya ce kawai da ake kira monotremate ke yi. Wannan group ya hada da platypus da echidnas. Za mu iya samun su kawai a Ostiraliya da wasu sassan Afirka. Waɗannan halittu suna yin ƙwai, amma ba kamar sauran dabbobin da ke da oviparous ba, monotremes suna ciyar da yaransu da madara kuma suna da gashi.