Yintoni flatworms isimetri mazwe: iimpawu zesakhiwo iimpawu ngokubanzi

Flatworms athathwa ngokuba ziintshulube iyingozi, leyo benzakalise ebambekayo kwizilwanyana ezininzi kunye nabantu. Noko ke, ezi zinto ziphilayo ezineefitsha ezininzi obuphambili isakhiwo, xa kuthelekiswa kunye neeyunithi ngendlela yangaphambili yaye ziyathandwa niche inkqubo yehlabathi ephilayo. Kweli nqaku uza kufunda flatworms ulingano mazwe kutheni ezinye zazo musani ukuba inkqubo yokucola ukutya yaye kutheni zinendima ebalulekileyo kwikhonkco lokutya.

flatworms Avilable

Eyona uphawu flatworms yi komzimba yabo. It has ifomu noxwebhu okanye iribhoni. Kulo mba, ezi zilwanyana musa ukuba umngxuma, kwaye izithuba phakathi imizimba bazaliswe uhlobo olulodwa kwizicwili - parenchyma. Igama elithi "ulingano mazwe" flatworms idibana okokuqala, njengoko kwezinye coelenterates luphawulwa uhlobo - radiation.

Progressive naye inkalo phambi iinkqubo omzimba kwakhiwa. Umzekelo, musculoskeletal siqulathe iseti kumphezulu epithelium kunye umaleko kwezihlunu ezibangela. Inkqubo kokudla esivalekileyo. inkqubo excretory emelwe tubules ayaphuma ngaphandle iyayondela. Ngenxa flatworms luvo babe nezimvo: emehlweni, ngaphandle kwebala, ukulungelelana, nendlela abayibona ngayo umchiza. Inkoliso yezi izilwanyana hermaphrodites. Oku kuthetha ukuba imizimba yabo akhiwa omabini iiseli yintsholongwane inkunzi nemazi. Kodwa flatworms zemigudu kuswela. Senza gas wotshintshiselwano wonke umphezulu umzimba. Ngaphakathi uhlobo kweeklasi ekwanti: ciliary, intshulube kunye flukes.

Yintoni flatworms isimetri mazwe

Inxaxheba ekudalweni nasekusungulweni kwale osemqoka okokuqala elivela njengezinambuzane kolu hlobo. Kwaye ngokuqhelekileyo kuthetha ingqikelelo wolingano- macala? Olu uhlobo acwangciswe ngalo amalungu ngamnye omzimba xa kuthelekiswa esqwini okanye iziko. Izilwanyana yokuqala multicellular, eziquka iziponji, musa ukuba ulingano. Ukwandisa phezu zeendawana, ukuba bangaba nayiphi na imilo.

Khumbula ukuba ikhangeleka ngathi jellyfish. Embindini emzimbeni wakhe, uyakwazi ukubeka ingongoma yengqikelelo macala onke ukubamba umgca. Nguwo lo radiation, okanye ulingano iphiramidi. Kuyinto uphawu izilwanyana ezihlala nzulu elwandle kunye neelwandle.

Yintoni flatworms isimetri mazwe? Phawula efotweni. Kunye umzimba yonke kwimpethu, unako ukuzoba komgca wentelekelelo owayebonakala alabe libe zizabelo amabini alinganayo. Esi wolingano-macala ezimbini okanye abambiseneyo.

Features lohlukanisa mazwe

Siyintoni isizathu ngokokubonakala omtsha wohlobo wolingano-macala? Okokuqala - kunye yokuphila ekutshintsheni eziphilayo nokuntsonkotha yesakhiwo. Mazwe lohlukanisa kukuthi uphawu yezilwanyana othatha ukuthuthela emoyeni. Oku kwenza ukuba umhlaba umgca babuye. Xa eziphilayo ezinjalo limi ngokucacileyo isebe ezizodwa emzimbeni ngaphambili. It amalungiselelo beqwalasele receptors wayithimba ixhoba. Flatworms bazilungise iinkqubo omzimba. Le yenye iimpawu okuqhubekayo yesakhiwo. Flatworms amalungu, kwakunye nezinye izilwanyana kunye ulingano amabini, akhiwe ngapha nangapha komgca wentelekelelo.

turbellarians

Yonke ntshulube kule eklasini izinto ezamahala-eziphilayo, ogama imilinganiselo musa ukudlula 6 cm. Igama ciliated ziimpethu lakhe onyanzelekileyo ciliary epithelium egubungele imizimba yazo. Baphila fresh amanzi, ityuwa emanzini, ihlathi emgangathweni. Yintoni lohlukanisa flatworms amabini, oku kubonwa ilungileyo umzekelo wabo, njengokuba imilo bomzimba wabo iphepha ebanzi ngokwaneleyo ukuba atshabalalisa dorsoventrally. Turbellarians - eziyingozi. Ziphume kulo lonke ixhoba, uyibambe. Ngaphezu koko, ukusuka emlonyeni kuvela khala ezincinane. Ngayo, umbungu yadika imixholo kwixhoba. Ezi eziphilayo zitya izilwanyana ezincinane: intlanzi, amanzi, kwindawo sinambuzane. Abameli beli eklasini zobisi kunye amanzi planarians.

flukes

Kodwa ke flukes ikutyela eqhelekileyo. Bona iintlobo ziqhelekileyo - cat wesibindi. Eli gama baza emehlweni host lokugqibela. umzimba yabo ibe ukuya kwi-8 cm. Kunye iilekese esiswini nangomlomo zincamathele izibilini-mkhosi kwalusa kwi emzimbeni. ziqale uphuhliso kubandakanya uthotho izigaba ngexesha apho ukutshintsha onke eziliqela. Ngoko ke, lo liphiko ikati kuphuhliswa kumzimba iimbaza amatsha kunye nentlanzi. Kuphela emva kokuba lo umbungu iintlobo abantu abaqolileyo, leyo parasitizes esibindini izinja, iikati okanye beziingcuka eziqwengayo.

tapeworm

Abameli kakhulu omkhulu olu hlobo isilwanyana tapeworm. umzimba babo libunjwa intloko encinane, ezo amalungu sokuthimba, intamo kunye namalungu. Akwazi ukufikelela amawaka aliqela units okanye amashumi iimitha. IBovine kunye yehagu tapeworm, tapeworm ebanzi, echinococcus ekumfimfitheni kwi mithambo ye emathunjini amancinci izilwanyana ezininzi kunye nabantu. Ngoko ke, intshulube akukho inkqubo yokwetyisa. Bona ezanyisayo sele kwetyiswe into ephilayo.

Ngenxa yoko, abameli yeflethi uhlobo aliqela ezinga eso sakhiwo. Ezi ziquka ukuvela macala yomzimba amabini, nto leyo ehambisana lokusekwa ezi nkqubo omzimba.