Mary Allen
Gabatarwa: Fahimtar Matakai Hudu na Girma
Girman dabbobi za a iya kasasu zuwa matakai hudu: kwai, tsutsa, pupa, da babba. Ana lura da waɗannan matakan a yawancin dabbobi, musamman ma kwari, waɗanda ke fuskantar cikakkiyar metamorphosis. Matakin kwai yana nufin lokacin da aka haifi dabba daga kwai. Matsayin tsutsa, wanda kuma aka sani da matakin caterpillar a cikin malam buɗe ido, shine lokacin da dabbar ta sami canje-canje masu mahimmanci a cikin kamanninta. Matakin pupal shine lokacin da dabbar ta sami metamorphosis, ta canza daga tsutsa zuwa babba. A ƙarshe, matakin girma shine lokacin da dabba ya balaga kuma yana iya haifuwa.
Matakai Hudu na Girma: Kwai, tsutsa, Pupa, Adult
Ana lura da matakai huɗu na girma a yawancin dabbobi, amma akwai wasu keɓancewa. Kwari, irin su malam buɗe ido, asu, beetles, da ƙudaje, su ne mafi yawan dabbobin da suka sami cikakkiyar ma'ana. A cikin wannan tsari, dabbar ta bi matakai hudu na girma, ciki har da kwai, tsutsa, pupa, da matakan girma. Sauran dabbobi, irin su amphibians, kifi, dabbobi masu rarrafe, da dabbobi masu shayarwa, suna fuskantar nau'ikan tsarin girma daban-daban.
Banbance Matakai Hudu na Girman Dabbobi
Yayin da yawancin dabbobi ke wucewa ta matakai huɗu na girma, akwai wasu keɓancewa. Wasu dabbobi suna tsallake mataki ɗaya ko fiye na girma, yayin da wasu ke jurewa nau'ikan metamorphosis daban-daban. Misali, wasu ƙwarin suna fuskantar ƙazamin metamorphosis da bai cika ba, yayin da wasu ke fuskantar ci gaba kai tsaye. Wasu kifaye da dabbobi masu rarrafe suna ci gaba da girma, yayin da dabbobi masu shayarwa ke samun ci gaba kai tsaye.
Dabbobin da suka tsallake matakin girma na kwai
Wasu dabbobi, kamar wasu nau'in kifi, dabbobi masu rarrafe, da dabbobi masu shayarwa, ba sa wucewa ta matakin girma. A maimakon haka waɗannan dabbobin suna tasowa kuma suna ƙyanƙyashe tun daga cikin mahaifiyarsu, a cikin tsarin da aka sani da viviparity. An haifi dabbobi masu rarrafe , kuma ba sa buƙatar kwai don haɓakawa. Misalai na dabbobi masu rai sun haɗa da whales, dolphins, da wasu nau'in macizai.
Dabbobin da suka Tsallake Matsayin Girman tsutsa
Yayin da akasarin ƙwarin suna fuskantar matakin tsutsa, wasu nau'ikan kwari suna tsallake wannan matakin gaba ɗaya. Waɗannan ƙwarin suna fuskantar ƙazamin metamorphosis waɗanda ba su cika ba, ta yadda suke haɓaka kai tsaye daga nymph zuwa babba, ba tare da wucewa ta cikin matakan tsutsa ko pupal ba. Misalan irin waɗannan kwari sun haɗa da ciyawa, kurket, da kyankyasai.
Dabbobin da suka tsallake matakin girma na Pupa
Wasu kwari, kamar mayflies, stoneflies, da dragonflies, ba sa fuskantar matakin girma. Maimakon haka, suna tasowa daga nymph kai tsaye zuwa babba, a cikin tsarin da aka sani da rashin cikar metamorphosis. Wadannan kwari suna haɓaka fuka-fuki da sauran halayen manya yayin da suke cikin matakin nymph.
Dabbobin da suka tsallake matakin girma na manya
Wasu kwari, irin su aphids, mealybugs, da kwari masu sikelin, ba sa fuskantar matakin girma na girma. Wadannan kwari suna haifuwa ta hanyar jima'i, kuma 'ya'yansu suna girma kai tsaye zuwa manya, ba tare da shiga cikin kwai, tsutsa, ko matakan pupa ba. Ana kiran wannan tsari a matsayin parthenogenesis, kuma shine madadin haifuwa ta jima'i.
Kwarin da ke fama da Metamorphosis da bai cika ba
Kwarin da ke fama da ƙayyadaddun yanayin da bai cika ba, irin su ciyawa, kurket, da kyankyasai, ba sa fuskantar matakin girma. Maimakon haka, suna tasowa daga nymph kai tsaye zuwa babba. Wadannan kwari yawanci suna shan molts da yawa, suna zubar da exoskeleton yayin da suke girma.
Amphibians waɗanda ke fuskantar Ci gaban Kai tsaye
Wasu amphibians, irin su salamanders, suna fuskantar haɓaka kai tsaye, ta yadda suke tsallake matakin girma na tsutsa. Wadannan amphibians suna haɓaka kai tsaye zuwa manya daga ƙwai, ba tare da wucewa ta cikin tsutsa ko matakan pupal ba.
Kifin da ke Ci gaba da Ci gaba
Yawancin kifi suna ci gaba da girma, ta yadda suke girma a duk rayuwarsu. Ba kamar sauran dabbobi ba, waɗanda ke jujjuya ma'auni don isa ga balaga, kifaye suna ci gaba da girma da haɓaka a duk rayuwarsu.
Dabbobi masu rarrafe waɗanda ke samun Sauƙaƙan Girma
Yawancin dabbobi masu rarrafe suna samun ci gaba mai sauƙi, ta yadda suke girma gabaɗaya a tsawon rayuwarsu, ba tare da jurewa ba. Ba kamar sauran dabbobi ba, waɗanda ke samun gagarumin canje-canje a cikin kamanninsu a lokacin haɓakawa, dabbobi masu rarrafe suna riƙe kamanni iri ɗaya a duk rayuwarsu.
Dabbobi masu shayarwa da ke Ci gaban Kai tsaye
Kamar wasu masu amphibians, wasu nau'ikan dabbobi masu shayarwa suna fuskantar haɓaka kai tsaye, ta yadda suke tsallake matakan girma da kwai da tsutsa. Wadannan dabbobi masu shayarwa suna tasowa kai tsaye daga embryos a cikin mahaifiyarsu, kuma an haife su cikakke. Misalan irin waɗannan dabbobi masu shayarwa sun haɗa da mutane, karnuka, da kuliyoyi.