Deuterostome liphoofolo tse: tlhophiso

Feature deuterostome liphoofolo ke hore nakong ea ntshetsopeleng embryonic sebakeng sa cavity mathomo Ho thehoa ea haha ka, molomo le ile bonahala ka sebaka se fapaneng ka ho feletseng. Ka mantsoe a mang re ka re hore lesea e na le molomo a qalang ka pheletsong e 'ngoe,' me motho ka mong a batho ba baholo - ba le boemong bo fapaneng. Deuterostome liphoofolo tse matleng a hae ho ea phela leholimong ba-karolo potlana, e kenyeletsang echinoderms, chordates le hemichordates. Ba ho matleng a ho thoeng phelang bilaterally ditshwani phelang.

Features ea liphoofolo bilaterally ditshwani

The tšobotsi e ka sehloohong ea liphoofolo tsena ke hore le letšehali le le letona mahlakoreng tsa 'mele - ena ke seipone hlakileng ea mong ho e mong. Tsela ea ho utloisisa see? O feela lokela ho romela sefofane se, e leng, joalokaha ho arola sehlopha sa phoofolo ka halofo. Tabeng ena, ka bobeli ba likarolo tsena tla ba le tsoanang. o ka fumana khopolo ea liphoofolo "bilaterally ditshwani" ka mehloli e meng.

Tsobotsi ena e fapane ka ho feletseng ho tswa ho le mofuta oa liphoofolo tse ling tse le ho batho, eo ka eona 'mele o e sa emisitswe ho symmetrically. Sena se bolela hore ha 'mele kaofela li kenngoa ka sefofane e tšoanang. Le bilaterally ditshwani ha lifofane tse ling. Tsobotsi ena e na le likarolo tse khothatsang. liphoofolo tsena tse bonolo haholo ho fallela ka mela ka kotloloho le ho retelehela. Ba ba haholo-holo deuterostome le liphoofolo.

Ho fapana le protostomes tloha deuterostome

Baemeli ba mefuta tsena, le hoja tse tšoanang, empa ho se tšoane ha e yo. Joalokaha ho boletsoe, ka bilaterally ditshwani le ke protostomes deuterostome liphoofolo. mabitso ana tsoa kamoo ba rictus develops nakong ntshetsopeleng embryonic. Ka phetoho protostomes blastospores (lesoba ka e ntse likahare ka sehloohong) sebopeho ka cavity molomo. 'Me sebakeng sena deuterostome thehoa haha. Moo molomo a qalang Ho thehoa ka tsela e ncha ka ho qetellong pel'a embryo ena. Ho na le boetse ho na le Maemong moo ho nang le koalo e feletseng ea blastopore, 'me molomo oa le haha hlaha hape.

'Me e mong le phapang bohlokoa haholo itšetlehile ka ntshetsopele ea pele ea boko. Ka protostomes ntshetsa pele boko a phoofolo batho ba baholo. Ka deuterostome e sekhahla phokotso ea sona 'me e ncha thehoa hape sebakeng se seng. liphoofolo tse Deuterostome ba boetse o bitsoa vtorichnomozgovymi.

liphoofolo tse Classification deuterostome

Re tšohlile ba liphoofolo deuterostome, mehlala le litšobotsi tsa ntshetsopeleng bona. Hona joale ke nako ea ho fumana hore na eo e leng oa subkingdoms ena. Tsena li akarelletsa mefuta e latelang:

- chordates;
- chaetognaths;
- echinoderms.

Joale a re ke re hlahlobeng ka ho qaqileng tseo liphoofolo tse ke liphoofolo tse deuterostome. Ke mofuta oa samjun ke Amphioxus, lampreys, tlhapi, sehahabi, lihahabi, linonyana le liphoofolo tse anyesang. Ke chaetognaths kenyeletsa liphoofolo tse leoatleng, le moemeli tsebahalang ka ho fetisisa ke leoatle motsu. A mofuta o sa tloaelehang haholo tsa echinoderms kenyeletsa starfish, urchins leoatle, likomkomere leoatle, likhahla leoatle. liphoofolo tsena tsohle tse tšoanang e le hore ba - deuterostome liphoofolo. Ho phaella ho lintho tse eaba ba etsa molomo, libōpuoa tsena boetse ho na le ho se tšoane ka ntshetsopele ya tsamaiso ea tse ling litho tse ling.

Features ya ntshetsopele ya chordates embryo

Chordates - e deuterostome liphoofolo tseo li fapana ka ponahalo, setšoantšo le ho phela maemo. Baemeli ba mofuta ona bo ka fumanoa hohle. Ba phela naha le ka metsing 'me ka mobu le moeeng. Hasana lefatšeng lohle. palo e ka bang mashome a mane tse sekete.

Ho kopanya ba ho ba teng ha masapo axial tsohle, ho tse sa mohato embryo ntshetsopeleng e hlahisoa e le notochord (samjun). Ho batho ba baholo ha ka foromo fetoloang, e sala feela ho e ka tlaase baemeli ba mofuta. Mong le e mong mong, ho tsoela hore ho thehoe la mokokotlo, oo e leng oa ho Strand e tsoelang pele e ba segmented.

Mokhoa oa sithabetsa lehe kopana le eena e leng tšobotsi e khethollang pakeng tsa tse peli tse Subkingdom: spiral ka protostomes le radial ka deuterostome.

The tsamaiso ea methapo ke tube, sekoti, karolo e ka pele ea eo hamorao e ba boko. ventricles hae ba thehoa ho tswa ho cavity hare.

Sebakeng anterior tsa tube, tshilong ya dijo ke tse pedi letoto la mekoti eo ka eona ho na le ho buisana le tikoloho kantle. Sena seo ho thoeng ke visceral lefarung. Lower chordates baemeli ba sebakeng sena ba le gills. ba bang kaofela ke feela embryonic rudiments, e leng ka nako eo ha mosebetsi.

Ba bang ba mehloli ba bua ka seo ho thoeng ke deuterostome hemichordates. Sena sebōkō-joaloka benthic liphoofolo. Tšoauoa ka notochord (hordopodobny 'mele) le para ea slits Gill. Ka ntshetsopeleng embryonic re hopotsang chordates, empa sebōpeho sa 'mele ke fapaneng ka ho feletseng. 'mele e emeloang ke mafapha a mararo: tsoene, molaleng le kutu.

chaetognaths liphoofolo tse

liphoofolo tsena tse metsing tse jang, o na le matla a ho mokhatlo oa ka potlako. Ntle, ba shebahala joang motsu eo e supa qetellong ka pele, 'me ka mohatla ka morao. Tsena ke bristles molemo ka ho fetisisa, e leng ho hapa lijo liphoofolo. 'Mele e leng hlooho,' mele o le mohatla. Ho na le mafahla lehlakoreng 'me e mong mapheoana mohatla.

Bao e leng liphoofolo tsena deuterostome bopilwe ka embryonic ntshetsopele ya cavity molomo le hore lehe radially hateletsoeng. Ka litsela tse ling tsohle ho na le ba bang ba se tšoane. liphoofolo tsena ha li na le ho potoloha ha mali, ho hema le litsamaiso excretory. Ho na le boetse ho na le ho na ducts ho ikatisa. The tsamaiso ea methapo ke lesale peripharyngeal.

Features echinoderms liphoofolo tse

A tsobotsi bath tsa baemeli ba mofuta ona ke ba teng ha ea tsamaiso tentacle. Sena mokelikeli tletseng cavities, ke eo susumeletsa phoofolo, phefumoloheng le chelete ama dithulaganyo secretory.

The intestine ke nako e telele tube, kapa mokotla. Tsamaiso ea ho potoloha ha mali e na le lijana tse chitja le radial. Lihlahisoa bola ema tsoa ka pores nyenyane marako a 'mele. Hampe ntshetswa pele makala kutloisiso e le tsamaiso ea methapo. Empa hantle-ntshetswa pele bokhoni regenerative. Boemong ba tšohanyetso, liphoofolo tsena li ka 'na lahla likarolo tsa' mele tseo re ka hlaphoheloa ka mor'a libeke tse peli. Thanks ena tšobotsi starfish ka esita le ikatisa ka ho arola tse peli. Ka mor'a nako e itseng, halofo ea bobeli e ka ho feletseng e tsosolositsoeng.

diphetho

Ho tloha ka holimo re khona ho bona hore na liphoofolo tse di deuterostome, ka peculiarities ya ntshetsopele ya bokgoni ba bona, le baemeli ba subkingdoms ena. Ho totobetse hore ke baemedi ba mefuta ena ke e thahasellisang haholo. Leha ho le joalo re tsoela pele lithuto tsa bona.