Chii chinonzi hydra? Coelenterates Kirasi hydroid

Kubva ino uchadzidza kuti hydra. Izvi mumiririri coelenterates inozivikanwa zvikuru pezvakaitwa yakaoma kunokosha tichienzanisa yokutanga zvipuka zvine masero akawanda zvinenge - sechipanji. Ndezvipi peculiarities yechivako chacho ndicho chikonzero? Ngatitarisei pamwe.

Chii Hydra mu Mythology

Miti iyi anowana zita raro nokuda kufanana pamwe rengano gamba - Lernaean hydra. Maererano nengano, aiva nyoka-kufanana romugungwa Nokuparadzwa mweya. muviri Hydra akanga misoro anoverengeka. Kuvakunda hazvaikwanisa kuva munhu - pamusoro nzvimbo musoro vakatema pakarepo akakura zvishoma vatsva.

Akagara Lernaean Hydra muna Lake Lerna, izvo wairindwa pamusuo paSheori neHadhesi. Hercules chete akakwanisa akagura musoro wake usingafi. Pashure vakauviga pasi uye akakanda ibwe rinorema. Ndiro basa chechipiri Hercules nevaviri.

Hydra: Biology

High kukwanisa kupora vakarasika nhengo dzomuviri kana patsva maitire uye nokuda Freshwater hydra. mhuka iyi ndiyo mumiririri mhando coelenterates. Saka chii chinonzi hydra? Izvi chete Freshwater polyp, iyo chete chaidzo mararamiro.

General zvechadenga coelenterates

Kufanana coelenterate zvose, Hydra ndiye upenyu hwemvura. It anoda kudzika gandwa, nyanza kana rwizi ine kuitika duku, izvo kuvabvumira kuti vasiyana zvinomera, kana pedo-pasi zvinhu.

Makirasi dzinoturwa Hydroids coelenterates, muramba uye nekorari polyps. Nokuti vamiririri vavo zvose vanoonekwa ne TOUR kana TOUR symmetry. Izvi STRUCTURAL chinhu chokuita ine ndakagara mararamiro. Pakati muviri pemhuka kungapedza zvekufungidzira pfungwa pairi mativi ose kuti dzibate mwaranzi.

coelenterates All imhuka zvipuka zvine masero akawanda, asi havazivi kuumba munyama. muviri wavo chinomiririrwa maviri akaturikidzana nemasero specialized. Zvayaiva mukati intestinal lumen, umo kugaya zvokudya. makirasi akasiyana coelenterates akasiyana nzira youpenyu;

• Hydroids vasiyana substrate pachishandiswa sole uye vari kuroorwa.
• Coral polyps tiri wakaiswa, asi chimiro misha iri mazana ezviuru zvevanhu.
• Muramba nokushingaira kushambira mumvura mbiru. Panguva iyoyo vakanga akaderedza bhero uye mvura kusundwa nechisimba. inofamba ichi anonzi reactive.

muviri mamiriro

Muviri Freshwater hydra sechinhu padzinde. hwaro Its anonzi sole. Narwo kunoitika mhuka kutyira pasi pemvura zvinhu. At nevakomana kuguma muviri ndiwo muromo yokutanga wakakomberedzwa tentacles. Inotungamirira munzvimbo intestinal lumen.

Hydra muviri rusvingo inoumbwa maviri akaturikidzana nemasero. Kunze anonzi ectoderm. It rinoumbwa ganda uye tsandanyama, tsinga, zvenguva uye masero anopedza. Yomukati layer kana endoderm aumba dzimwe mhando - zvomudumbu uye glandular. Pakati akaturikidzana muviri ndiwo paiva extracellular chizvaro ine ndiro chimiro.

Cell mhando uye pezvakaitwa zvoupenyu

Sezvo muviri hydra haina kuumbwa chero nyama kana nhengo, zvose pezvakaitwa vasiri vakatakudzwa kubva tichibatsirwa masero specialized. Saka, epithelial-tsandanyama zvinopa kufamba. Hungu, pasinei yakamisirwa mararamiro hydroid kukwanisa kufamba. In ichi chokutanga akaderedza epithelial-tsandanyama masero rimwe divi womuviri, mhuka iri "tilted", umire pamusoro tentacles uye ipapo kutura angonanga sole. mumwe inofamba kwakadaro anonzi kufamba.

Pakati epithelial-tsandanyama masero etsinga vari nyeredzi serin'i. Uchibatsirwa wavo mhuka ndinoona kuitika kubva kwezvakatipoteredza uye neimwe nzira mutoro kwavari. Somuenzaniso, kana tsono hydra kubatwa, ishoma.

Ectoderm unotora uye masero zvenguva. Ivo vanokwanisa zvinoshamisa transformations. Kana zvakakodzera, vanoumba masero chero mhando. Ndizvo avo vane basa yakakwirira nenhanho kuzoita mhuka idzi. Zvinozivikanwa kuti hydra anogona kupora zvachose ayo chikamu 1/200 kana slurry-kufanana nehurumende.

Kubva zvenguva masero achiumbwa uye pabonde. Izvi zvinoitika pakatanga kwematsutso. Panyaya iyi, zai dzisingaoneki fiyuzi yokuumba zygote, uye mwana nema muviri unofa. Muchirimo vavo kuva vaduku vanhu. Summer hydra reproduces kuburikidza yotunga - vakaumba hillock, iyo kunowedzera kukura, tikwanise zvinhu akura muviri pamuviri wake muduku. Pamwechete kukura kwayo makatsemura kure uye kune chinozvimirira.

The endoderm coelenterates iri masero zvomudumbu. Mavari pane kukamurwa muviri. A masero shwanu secrete makemikari ari intestinal lumen, kukonzera inowira nezvokudya zvidimbu. Saka, nokuti randinenge maviri marudzi hydra kugaya. Dzinonzi intracellular uye dundira.

masero anopedza

Hazvibviri kupindura mubvunzo, chii chiri hydra, kana asina vakajairana peculiarities ose masero anopedza. Zvakasikwa, zvinowanika chete coelenterates mhuka. Navo vari kudzivirirwa, kukuvara uye kugadzirwa munhare. Naizvozvo, avo zvikuru mari unongoda pamusoro tentacles.

Sero anopedza rine Kamudzira ine helically vakamonyanisa shinda. Pamusoro pemvura mamiriro ichi inonyatsoziva bvudzi. Zvaiva kurwadziwa chayabata swims napo. Somugumisiro, neshinda riri unwound uye nesimba tichichera mumuviri wemunhu, kuremerwa nayo.

By mhando coelenterates simba, hydra ari kunyanya heterotrophic nezvikara. Vakaguta duku hwemvura invertebrates. Somuenzaniso, daphnia, cyclops, oligochaetes, rotifers, inda, mosquito mazana uye hove furaya.

zvichireva coelenterates

The kukosha hydra zvakasikwa kunonyanya iri chokwadi chokuti anoita somunhu zvipenyu firita vanongodya. It Unochenura mvura kubva yakaturikwa nezvimedu, iyo anodya. Izvi zvinokosha kubatana simba matunhu Freshwater. Hydro zvokudya zvimwe cladocerans, turbellarians uye hove hombe pane 4 cm. Mal'kov hydra pachayo zvarinoita uturu masero anopedza.

Asi masayendisiti ari mubvunzo, chii hydra kunge kupindura kuti chinhu chinozivikanwa chinhu mumarabhoritari nemiedzo. Kudzidza patsva zvinhu izvi coelenterates pezvakaitwa, physiology ezasi zvipuka zvine masero akawanda, yotunga.

Nokudaro, Freshwater hydra ndiye mumiririri boka mhando Hydroids Coelenterates. Izvi zviviri-rukoko zvipuka zvine masero akawanda mhuka pamwe TOUR symmetry, ane muviri rinoumbwa pakubhadhara vanoverengeka masero specialized.