Uhlobo ziimpethu tyaba, ingakumbi isakhiwo kwangaphandle nangaphakathi

Uhlobo Flatworms iquka iintlobo ezingezizo olwaye lwamfimfitha kunye olwaye lwamfimfitha. Kulo free-eziphilayo adityaniswa kwiklasi enye, kunye nabo bahlala kwi ngokuxhaphaza kwezinye izinto, - ezintandathu. abameli Class Ciliated (Planaria turbellarians) bahlala kumaqumrhu zamanzi, avamise zamarhamncwa.

flatworms olwaye lwamfimfitha ihlale emzimbeni kwezilwanyana nabantu. data eziphilayo ukuba liziqhelanise kakuhle ezi meko zobomi, oko. ukuba. abe ngumtya, leyo ziqhotyoshelwe iindonga amalungu angaphakathi-mkhosi, kunye nomzimba abamnkela kunye elinyusayo-inani komsindo. Bona luphawulwa kungekho ometyiso (ngaphandle eklasini Flukes), izondlo zifunxwe ngumzimba izakhamzimba ngenxa outgrowths ezizodwa; internal anaerobic (bona uphefumlele kwindawo kakhulu ioksijini-free), nonyebeleziso (bona hermaphrodites).

Zonke ezi mpawu ukuvumela le ephilayo kuhlala ngokusisigxina emzimbeni nomkhosi kwaye ube ngeendleko zakhe. Ezi helminths ziquka: isibindi Iphiko, remenets, cat Iphiko, inyama yehagu tapeworm, Echinococcus, njl Ukuze ukubamba umntu sabo, ukuba utya inyama iinkomo ekrwada okanye kakubi ngayo, yehagu kunye nentlanzi ..

Flatworms Uhlobo idibanisa izinto ezineefitsha ezifanayo, zombini isakhiwo ngaphandle kunye nezo ziphuma ngaphakathi. Bamele bespolostnoy izilwanyana babe, umzimba evuthelweyo atshabalalisa ezantsi, okt. E. Kuye iflethi okanye kakhulu tyaba. Kwakhona, akukho xesha lokuqala kukho ulingano mazwe kwi ontogeny wabeka ngongqameko intsholongwane ezintathu - ecto, eziphakathi kunye endoderm - leyo izitho zangaphakathi akhiwa elizayo. Flatworms Uhlobo kwakhona olwahlula ubukho kwisingxobo ulusu-imisipha yi kwesongezelelo se epithelium ilahlwe ngaphantsi imicu kwezihlunu. Oku kwenza ukuba "umbungu-like" ukuhamba.

Inkqubo kokudla ekwimo free na isakhiwo abangekaphuhli kwaye iquka foregut, okanye pharynx, midgut, esiphela ongayaziyo. Xa helminths le nkqubo omzimba lifinyele.

flatworms luvo zimelwe bafundelane ngezibini palsy ganglia nemithambo komboko, leyo kumka kuyo kwaye eziqhagamshelene kwo thunzi. kuphuhliswa ngamandla ezimbini buti longitudinal esiswini.

Iinkqubo yegazi kunye nokuphefumla ungekho. Phefumlela abameli iklasi epithelium ciliated, leyo egubungele imizimba yazo evela ngaphandle.

amalungu excretory - protonephridia. Ziqulethe uluhlu inkqubo tubular, engaphele iiseli stellate kunye isiliya. Kukhuthaza iimveliso inkunkuma pathways kokusingqongileyo kwenzeka ngokusebenzisa iindawo ezizodwa excretory.

inkqubo Reproductive Italasi kwaye isikakhulu inkqubo imibhobho, eziyimfuneko ukuze ekupheliseni iimveliso ngesondo, kunye copulatory ilungu ukuchumisa lwangaphakathi.

Ngenxa yoko, uhlobo ziimpethu tyaba - oku Ngokusisiseko iifom olwaye lwamfimfitha (helminths), bonke abakwaziyo ukuziqhelanisa kwaye alungise indlela yabo yokuphila.