Whekau huirua: te tauira me te taunaki mō te kunenga

He nui ngā taunakitanga ki te whakamatau i te oraraa o te tukanga o te huringa kunenga o kaiao ora pūtaiao koiora Modern. Ko tētahi o ratou - he whekau huirua, ka kia kōrero tauira o nei i roto i to tatou tuhinga.

taunakitanga o te kunenga

he mīharo noa hoki tona momo te ao organic o to tatou paraneta. E na rerekē e meka kōrero he uaua te kotahitanga o ratou take kaiao ora katoa. Heoi, kua he momo o te taunakitanga tenei. I roto i te wahi tuatahi - ko te ōrite o te hanganga matū, ara te aroaro o ngā rāpoi ngota o pūmua, lipids, warowaihā me waikawa karihi. māngai katoa o nga kingitanga o te natura, engari huaketo i te hanganga pūtau.

whanaketanga embryonic o vertebrates

pūtaiao i huaina o te whanaketanga embryonic Embryology. Kua whakaaturia kaipūtaiao rangahau e kore te whanaketanga wawe o vertebrates e rerekē i ia atu. Notochord, ngongo neural, te Kosi pihapiha i korokoro te - enei āhuatanga katoa, i reira he manu, me te ika, me te tangata. I roto i te akoranga o te whanaketanga atu o nga akomanga rerekē o rauropi mamae kāhuarau.

taunakitanga morphological mō te kukuwhatanga

Ko tētahi o te taunakitanga matua o te tukanga whanaketanga ko te ōrite i roto i te hanganga o nga wahi ngā o te tinana. huaina ana tēnei āhuatanga te Morphology. He tauira a Tūrongo, o te hononga i waenganui i ngā akomanga takitahi o vertebrates he duckbill. Tenei kararehe Ko te maha o ngā āhuatanga takawaenga i waenganui i ngokingoki, manu me whāngote. Fakatatau ki ai, He āhuatanga māngai o enei akomanga katoa te ihukenu. Hei tauira, he kararehe whakamahi mā te whakapanga hua. I te wa ano hopoi mai ake e ia tana kuao ki te waiu, rite whāngote. Swimming waewae huirapa, hanga he tikanga o ruwha te wai i roto i te ngutu, me te ihu papatahi titiro ia rite te manu. A hua reira he paihana, rite ngokingoki maha.

tinana huirua me rite

Etahi o nga tinana o te kararehe, me ngā tipu, i roto i te noa'tu o te mahi rerekē, i te takenga mai noa. Hei tauira, piri te pūhihi pea whakato ki te tautoko, me tarakina tiotio whakaiti te kaha o te whakaetonga o te wai. Otiia i roto i te wā e rua, enei hanganga ko te whakarerekētanga o te rau. He ingoa tenei āhuatanga - te homology o whēkau.

Ko te ngira barberry me rōpere tataramoa i rerekē takenga. I roto i te take tuatahi ko reira te rau lateral, me te rua o nga - pārōnaki kiko paninga whakato. E huaina taua tinana rite. whai hoki whānui parirau o te ekara, me ngā pūrerehua rerekē takenga. Ahakoa ko reira rawa uaua ki te whakatau i mawhiti tuatahi, mai te whakarato katoa o enei hanganga te rere. Ko whakarerekētia te manu kei te forelimbs, me o ratou huruhuru. Na nga parirau o pepeke he outgrowths o nga pukupuku. O te akoranga e kei ratou i raro i te tinana, me te kore e whai wāhi i roto i te rere.

He taunakitanga hāngai o te takenga noa o te kararehe rerekē tinana huirua, me te rite. Na nga rerekētanga i roto i te āhuatanga o ratou hanganga e tika ki te urutaunga ki noho rerekē me te āhua.

He aha e huaina whekau huirua: tauira

Ko te tauira tino angamaheni o homology he alangá whai tuaiwi mua. Whale me te aihe pakihau, parirau manu me te pekapeka, ringa tangata, waewae, me te koka kamiriona mahi mahi rerekē. Ko he rite ratou hanganga. Katoa o tenei forelimbs whai tuaiwi angaroto, e ngā o e toru ngā wāhanga: te pokohiwi, kikowhiti me te ringa.

Na roto i te mana huirua e whakarerekē hoki nga wana o ngā tipu. E ratou rerekētanga nui i roto i te hanganga o waho, me te mahi. Kua elongated Lily māngaro internodes, kōpura potato piki te supply o te wai ki ngā matūkai, me te pereti basal o riki ko te pūtake mō te whakatika i te rau kikokiko. Heoi, whekau huirua, tauira o nei i whakaaro matou he angamaheni o hanganga mawhiti. Otiia e kore e katoa te i! A feruri i te mea e karangatia e whekau huirua, taea hoki e te reira i te tauira o akatuke'anga pakiaka. okana whakato raro e taea hoki te tino whakarerekētia i roto i ngā āhuatanga whakatipu rerekē. Na, thickens rutabagas me kāreti pakiaka matua, supply o ngā matūkai. Taua hua i roto i te tau tuatahi e kore e hua purapura. I roto i te ngahuru o ratou whekau irirangi mate, engari i te utu o te tipu pakiaka raro kei te haere i roto i te wa makariri. Taua whakarerekē Ko te kupu whakahoki ki te pātai o te mea te tikanga he whekau huirua. Tauira o enei ko - ko ano hoki tenei te rangi, te kupukupu me te piri ki te pakiaka.

Mea timatanga me te atavism

He whekau vestigial hoki taunakitanga morphological o te kukuwhatanga. Ko nga wahi o te tipu me ngā kararehe e te hunga underdeveloped enei. I roto i te tangata, ko reira te toru o nga kamo, te rarangi tuarua o niho, me te te uaua e neke te pinna.

Tohu, mea timatanga ritenga, ko te throwback. Ko reira te faaiteraa o huru o tupuna kahore he motuhake ki takitahi o te momo i homai,. Ka rite ki te tauira, te whanaketanga o te multimammate tuaiwi coccygeal, tonu tupu te huruhuru i roto i te tangata. Ki te whakaaro tatou ki te kararehe, ratou atavism ko te whanaketanga o peke hata i roto i te tohorā me te nakahi.

Ko te kupu, whekau huirua, tauira o nei i aparauhia i roto i tenei tuhinga, me talanoa, mea timatanga me te atavism he taunakitanga morphological o te tukanga o te kukuwhatanga. Enei tohu tupu i roto i rua kararehe me ngā otaota. huaina okana huirua hanganga e whai he mahere noa o te hanganga, engari rerekē i roto i te mahi whakamana. Ko te aroaro o te tangata e rārangi huanga fakamo'oni'i tona take i te kararehe rite ki te hua o te huringa kunenga.