Kweinozivikanwa mune zvokudya Amphioxus uye dzemugungwa: okufananidza unhu

Munyaya ino muchawana mhinduro dzemibvunzo sei kudya dzemugungwa kuti ingasvika muviri Amphioxus uye dzemugungwa. Utachiona aya akaenzanisa hakusi netsaona. Vane zvakafanana zhinji, vazhinji iyo hanya uye vasiri kwendangariro.

Amphioxus uye dzemugungwa: mvura vagari

Amphioxus ndicho chinyakare mhuka dzakadai chordal. Asi chinzvimbo chake makemikari nyika ino kuti asarudze zvakanga zvisiri nyore. Masayendisiti wakatora clam ake uye rinonzi lanceolate hozhwe. Makore 60 chete pashure kuwanikwa mhuka iyi pakuzivikanwa kuti vari mumiriri akasiyana chaizvo mhando. Uye zvirokwazvo, chimiro Amphioxus uye dzemugungwa kusanganisa nyore chaizvo. Vane nyoro muviri, usina segmented. Asi Amphioxus iri mukati axial marangwanda, inonzi Chord. Dzemugungwa vari kunyimwa nezvazvo.

Kweinozivikanwa mune zvokudya dzemugungwa uye Amphioxus? Kutanga, zviri imwe nzvimbo, apo ivo kundoitora. Utachiona uhwu kurarama mumvura. Amphioxus anoda mvura shoma yamakungwa. Ndiye Semi-mhanya mararamiro, mumwe mugumo muviri akavigwa mujecha.

Zvichienderana mhando dzemugungwa vanogona kurarama mugungwa, mvura yakachena, panyika. Somuenzaniso, nedhambakura, inova mumiririri boka gastropods, dzinogona kuwanika pamusoro pemasango. Asi Cephalopods kurarama bedzi mumakungwa uye nyanza. To zvinosanganisira bivalve mussel, perlovitsy, Dracena, mussels, oysters, chikepe nehonye tridaktny. Vanorarama chete mumvura miviri.

Kweinozivikanwa mune zvokudya dzemugungwa uye Amphioxus

Amphioxus nenzira dzichifura ane zvikuru zvakafanana pamwe bivalves. Gastropods vadzime kure algae kubva substrate. Vanoita izvi nokushandisa imwe grater - rurimi akafukidzwa horny meno. Asi cephalopods zvinoshingaira nezvikara. Vanorwisa hove uye crustaceans.

Chinyakare chordates hadzina kujairana ichi. Kweinozivikanwa mune zvokudya Amphioxus uye bivalves? Vose heterotrophs kuti kufungisisa mvura yakaturikwa Organic inoramba. Izvi zvinonzi firita vanongodya.

The nemamiriro zvomudumbu hurongwa

Kuti uzive kweinozivikanwa mune zvokudya Amphioxus uye dzemugungwa vanofanira kufunga nemamiriro zvomudumbu hurongwa nhengo. Akabereka mhando. In Amphioxus nhengo kuti kugaya gadziriro inomiririrwa kuburikidza-dumbu, izvo anoumba hepatic outgrowth. Rinotanga zvokuudzwa hwomukova wakakomberedzwa tentacles. Rinotevera weboka iri mweya yaibata pose pose Gill slits.

In dzemugungwa zvomudumbu hurongwa anotanga dzaiita zvokutaurwa, nokunobuda netsvina uye mativi. Yokupedzisira inotanga kupinda jasi mhango. Average ura unoumba kuwedzerwa mazuva okubhadhara, anonzi mudumbu. Mumwe muenzaniso, izvo zvinoratidza kuti zvinonakisa muviri Amphioxus uye dzemugungwa, ndiye Kuwanikwa unyanzvi mumasero. Pakutanga havana vanomirirwa chete chiropa. Uye dzemugungwa ndiwo omumuviri mate, izvo ducts yakazaruka muruoko pharynx. The Zvinoumba ichi zvinobva makirasi dzakasiyana zvingasiyana. Somuenzaniso, imwe cephalopod, kunze makemikari ari mate vari kubudisa chepfu inouraya zvakatapwa.

simba zvitengeswa

Asi chii mune zvokudya Amphioxus uye bivalves? Ndicho chikafu pachayo. Sezvazvakanyorwa anopinda muviri filtration, chinosanganisira tupukanana tusingaoneki, cyanobacteria, ciliates, crustaceans diki, mazai uye mazana vamwe mhuka. Ivo vose vanoumba hwaro zooplankton uye phytoplankton. Mineral zvinhu izvo zvazvichanyungudutswa mvura, iri yokuita zvinoitwa zvinenge. nzira iyi zvitengeswa ndiyo pusa. Munzira dzakawanda iye akataura ndakagara mararamiro Amphioxus uye bivalves.

filtrators

Chinonyanya chinokosha kuti anosarudza kweinozivikanwa mune zvokudya Amphioxus uye dzemugungwa, riri inonzwika apo. Nokuti ayo Implementation siphons vari clams. Ava mwena mbiri neshure chikamu chomuviri, iyo kuzarura kupinda mhango pakati nejasi. Kuburikidza rezasi kusveta inopinda mvura yakaturikwa tudonhwe chikafu. Uye kuburikidza musoro kare dzinounzwa yakachena chimiro.

Mupise muna Amphioxus hunonyatsobatana nokufema. Cilia riri huro uye partition pakati dakashwa slits, kupa kugara mvura kuitika. Zvinoitawo kunoitika uye gasi exchange.

Saka, zvatakurukura kuti zvinonakisa muviri Amphioxus uye dzemugungwa. mhuka idzi akafanana panyaya mukuru nemamiriro zvomudumbu hurongwa nhengo. Akabereka mhando. It unotora munhu tubular kusiyaniswa ura uye zvomudumbu shwanu. Utachiona kuti isu munyaya ino vari heterotrophic firita vanongodya. Vakaguta zvinenge yakaturikwa mumvura kuti napo. Nzira yakadaro pusa, zvichikonzera ndakagara Data mhuka.