Deuterostome mhuka: kupatsanura

Feature deuterostome mhuka kuti munguva embryo kukura panzvimbo inokosha mhango achiumbwa pamusoro horo, muromo uye zvadaro anooneka yakasiyana zvachose nzvimbo. Nemamwe mashoko tinogona kutaura kuti mudumbu ine muromo buri pamugumo, uye munhu mukuru mumwe - iri pakatarisana chinzvimbo. Deuterostome mhuka ndezvaJehovha hwaJehoshafati Sub-chikamu, izvo zvinosanganisira echinoderms, chordates uye hemichordates. Vanopinda vanonzi bilaterally zvakafanana, ichibata zvipenyu.

Features yemhuka bilaterally zvakafanana, ichibata

The chikuru chinoratidza mhuka idzi kuti kuruboshwe uye zvakarurama mativi muviri - iri girazi pachena mumwe. How kunzwisisa izvi? Unongofanira havo ndege, iyo, sezvo inokamura muviri mhuka iri hafu. Muchiitiko chino, vaviri zvikamu izvi zvichava zvakafanana. unogona kuwana pfungwa mhuka "bilaterally zvakafanana, ichibata" mune dzimwe zvinyorwa.

Nyaya iyi yakasiyana zvachose worudzii vamwe fauna of uye vanhu, umo muviri akarembedzwa symmetrically. Izvi zvinoreva kuti haana zvose mitumbi inoiswa chete ndege. Uye bilaterally zvakafanana, ichibata hapana zvimwe ndege. Nyaya iyi ine zvinhu zvakanaka. Hadzina nyore chaizvo kufamba mu yakarurama mitsetse uye chijana. Ivo vane zvikurukuru deuterostome uye mhuka.

Kusiyana protostomes kubva deuterostome

Vamiririri Miti izvi, kunyange zvakafanana, asi kusiyana zviripo. Sezvambotaurwa, pane bilaterally zvakafanana, ichibata uye vari protostomes deuterostome mhuka. Mazita aya anobva sei ivo rictus anova munguva embryo kukura. At yezwi protostomes blastospores (buri chikuru dumbu) inotungamirwa ari nemumuromo mhango. Uye panzvimbo ino deuterostome kuumbwa horo. Makavigwa muromo yokutanga achiumbwa itsva nzira pamberi kuguma embryo. Panewo zviitiko apo pane kuvhara yakazara blastopore, uye muromo uye horo kuonekwa zvakare.

Uye mumwe musiyano kukosha iri kutanga kukura uropi. In protostomes dzichiri uropi yemhuka vakura. In deuterostome raro mwero rutapudzo uye itsva dzaiumbwa zvakare kumwe. mhuka Deuterostome vanonziwo vtorichnomozgovymi.

Kupatsanura deuterostome mhuka

Takurukura uyo ari deuterostome mhuka, mienzaniso uye zvinoitwa kukura kwavo. Zvino yava nguva yokuti uzive ndoupi ichi subkingdoms. Izvi zvinosanganisira marudzi anotevera:

- chordates;
- chaetognaths;
- echinoderms.

Zvino ngatikurukurei zvose izvo mhuka imhuka deuterostome. By mhando Chord vari Amphioxus, lampreys, hove, amphibians, nezvinokambaira, neshiri uye mhuka. By chaetognaths zvinosanganisira mhuka zvomumvura, mumiriri wakakurumbira zvikuru ndiwo museve gungwa. A kujairika mhando echinoderms zvinosanganisira Starfish, gungwa urchins, gungwa wemagaka, gungwa maruva. All fauna of izvi zvakafanana ndechokuti - deuterostome mhuka. Kuwedzera zvinhu achiumba muromo, zvisikwa izvi ndiwo kusiyana kukura mamwe nenhengo dzawo.

Zvakakurukurwa kukura embryo chordates

Chordates - nayo deuterostome mhuka zvakasiyana pachiso, mufananidzo uye magariro. Vamiriri ichi mhando kunogona kuwanikwa pose pose. Vanorarama munyika uye mumvura uye iri muvhu uye mudenga. Kupararira pasi pose. Nhamba iri vanenge zvuru makumi mana.

Rinoabatanidza zvose pamberi axial marangwanda, uko embryo kukura danho anomiririrwa sezvo notochord (Chord). In vakuru kwete nenzira zvakachinjwa chimiro, inoramba chete rezasi vamiririri mhando. Vose, zvinoita anoenda paumbwe nomuzongoza, kuri kuramba beach inofambidzana segmented.

The nzira nokupwanywa zai ndiyewo runoratidza pakati maviri Subkingdom: zononoka mu protostomes uye TOUR mu deuterostome.

Tsinga ndiyo negomba chubhu, nechemberi iyo gare gare inova uropi. ventricles vake aumba kubva zvemukati mhango.

Munzvimbo Anterior munharaunda zvomudumbu chubhu iri mbiri munhevedzano makomba kuburikidza paine kutaurirana pamwe kwokunze kwezvakatipoteredza. Izvi anonzi visceral mumukaha. Lower chordates Vamiririri munzvimbo ino vane gills. Vose ndiyo embryo zvokuvamba chete, izvo zviri ipapo asina basa.

Vamwe mabhuku anotaura vanonzi deuterostome hemichordates. Izvi honye-semhuka benthic. Hwokuratidza notochord (hordopodobny muviri) uye peya Gill slits. In embryo kukura nowenyika chordates, asi nemamiriro muviri zvakasiyana zvachose. The muviri chinomiririrwa madhipatimendi matatu: proboscis, chipika uye hunde.

chaetognaths mhuka

Hadzina zvomumvura zvikara, anokwanisa nokukurumidza kufamba. Nechokunze, vanotarisa kufanana museve riri akanongedza pamberi mugumo, uye muswe kumashure. Ndivo zvakanakisisa bristles, iyo inobudisa mhuka zvokudya. Body vanoumba musoro, mutumbi uye muswe. Kune mapatya uye divi rimwe muswe zvimbi.

Kuva mhuka idzi deuterostome kunoratidzwa embryo kukura nomumukanwa mhango uye kuti radially yakapwanyika zai. Mune zvimwe zvose pane kusiyana. mhuka idzi havana kweropa, kufema uye excretory nehurongwa. Kunewo hapana dzokubereka ducts. Tsinga iri mhete peripharyngeal.

Features echinoderms mhuka

A maitiro chepfungwa vamiririri ichi mhando ndiyo pamberi tentacle hurongwa. Izvi Urume yakazara in, izvo mhuka unotii, anofema uye zvinowanisa unobatwa secretory kwendangariro.

The ura iri kumicheto refu kana hombodo. The kweropa Hurongwa ine dzeraundi uye TOUR nemidziyo. The kuora zvigadzirwa aunonyanya kuburikidza pores diki pamadziro muviri. Havaratidzi dzakabudirira pfungwa mapazi uye tsinga. Asi zvakanaka dzakabudirira mano rokuzvivandudza rakaita kuti irambe. Panjodzi, mhuka idzi anogona kurasa nhengo dzomuviri zviri akapora pashure pevhiki mbiri. Nemhaka iyi dzinoti Starfish anogona kunyange bereka kuburikidza vachigoverana nepakati. Papera nguva, yechipiri hafu iri rukaporeswa.

zvabuda

Kubva apa tinogona kuona kuti mhuka deuterostome, pamusoro peculiarities okukura kwavo, uye vamiririri subkingdoms. Zviri pachena kuti vamiririri ichi dzemarudzi unofadza zvikuru. Vachiri nezvidzidzo zvavo.