Irin lebur tsutsotsi, musamman da na waje da kuma na ciki tsarin

Type Flatworms kunshi da ba-parasitic da parasitic siffofin. A wannan free-rai kwayoyin suna hade a daya aji, da kuma wadanda suka rayu a kudi na wasu kwayoyin, - shida. Class wakilan Ciliated (Planaria turbellarians) rayuwa a jikin ruwa, sau da yawa ne da yara.

Parasitic flatworms rayuwa a cikin jikin dabbobi da mutane. data kwayoyin suna da kyau saba da wadannan yanayi na rayuwa, cewa shi ne. to. da sucker, wanda aka haɗe da garun da kayan ciki daga cikin rundunar, da kuma wani segmented jiki tare da wani taba-kara yawan segments. Suna halin da rashi na narkewa kamar tsarin (sai dai aji Flukes), na gina jiki suna samamme ta jiki ta hanyar musamman outgrowths. anaerobic numfasawa (da suka hũra a cikin wani ma oxygen-free yanayi), da kuma yaduwa (suna dauke da lalurar mata).

Dukan waɗannan fasalulluka ba da damar wannan kwayoyin zuwa shirya har abada a cikin rundunar ta jiki da kuma zama a cikin kudi. Wadannan helminths hada da: hanta fluke, remenets, cat fluke, naman alade tapeworm, Echinococcus, da dai sauransu Don kama su mutumin zai iya, idan ya ci raw ko talauci bi da shanu nama, naman alade da kuma kifi ..

Type Flatworms hadawa kwayoyin da cewa suna da irin wannan fasali, duka biyu waje da ciki tsari. Su wakiltar bespolostnoy dabbobi suna da wani elongated, flattened jiki zuwa ƙasa, watau. E. Yana yana da wani lebur ko ma lebur. Har ila yau, shi ne karo na farko lokacin da akwai hadin fasali a yanayin halitta na juya aza uku jam yadudduka - ecto, meso da indodem - na wanda ciki gabobin suna kafa a nan gaba. Type Flatworms ma characterizes gaban fata-tsoka 'yar jakar wanda shi ne wani tara na epithelium da kuma zubar a ƙasa da tsoka zaruruwa. Wannan damar da su zuwa "tsutsa-kamar" motsa.

Narkewa kamar tsarin ne a free nau'i ne m tsarin da kuma kunshi wani foregut, ko pharynx, midgut, wanda ƙare ɗimuwa. A helminths wannan sashin jiki tsarin da aka rage.

Juyayi tsarin flatworms wakilta guda biyu cerebral ganglia da jijiya kututturan, wanda tashi daga gare shi, kuma da alaka da annular gadoji. Karfi da ci gaba ne biyu a tsaye na ciki akwati.

Sistem da numfashi tsarin ne ba yanzu. Numfashi wakilan da aji ciliated epithelium, abin da ya rufe su jiki daga waje.

Excretory gabobin - protonephridia. Sun kunshi wani tubular tsarin, wanda kawo karshen stellate Kwayoyin tare da cilia. Tukar tumbi na na rayuwa sharar kayayyakin a cikin yanayi na faruwa ne ta musamman excretory takware.

Haihuwa tsarin hermaphrodite kuma shi ne mafi sau da yawa wani tsarin na ducts, waxanda suke da zama dole domin kawar da jima'i kayayyakin, da kuma copulatory sashin jiki ga ciki hadi.

Saboda haka, da irin lebur tsutsotsi - wannan shi ne m parasitic siffofin (helminths), wanda ya kasance iya daidaita da kuma daidaita zuwa ga hanyar rayuwa.