Annelids: tsanangudzo pfupi pamusoro mhando

Annelid Makonye - kumbonyanya guru boka invertebrate zvipenyu. Mukuwedzera, ndivo vakawanda vakaronga vamiririri nehonye. Zvinowanika kunyanya yakachena uye munyu nemvura, uye zvakare muvhu. Dzimwe zvikwevaropa achinaya kunge dzakashandisa munhu pano kwadzinoita kuvapo.

Nyorai Annelida: mukuru unhu

Kukura ichi boka siyana kubva millimeters shoma kusvika mamita matanhatu. Zvikuru maitiro chinhu ndiyo kuvapo ichi muviri segmentation - muviri wavo rinoumbwa munhu muzvizhinji maringi, iro rinotsanangura zita mhando. External annulation rinoenderana zvemukati segmentation. Ndokusaka kana muviri vakuvara kana kukuvaradzwa annelid anorasikirwa chete zvikamu shoma, izvo nokukurumidza akapora.

Kunze muviri akafuka cuticle, usina itangezve. Kubva richikura chitin bristles - mumwe maitiro kuchiitwa ichi boka remhuka. Vamwe vamiririri pamusoro zvikamu zvinogona parapodium - asi chinyakare nemakumbo, izvo dzimwe nguva vakapakata vasanonoka bristles kana gills.

Annelids: STRUCTURAL zviri zvomukati

Nokuti vamiririri ichi mhando kunoratidzwa kuvapo yechipiri muviri mhango - coelom. mhango iyi yakazara imwe mvura, kuonga kuti rutsigiro zvinoitika mumatunhu ari munyika kwezvakatipoteredza.

Pane bhegi ganda-tsandanyama chine balls epithelium uye tsandanyama mumapoka mhete uye longitudinal bhendi.

The zvomudumbu kwava pamuchinjikwa-nokuveza, muromo rinotanga uye rinopera chete horo. Annelids ndiwo mapoka vatatu ura - mberi, pakati uye neshure. Mune dzimwe mhando vakaumba chinyakare mate mumasero.

Kufema muviri kubudikidza ganda. The chete kunze mamwe kwemarudzi zvomumvura mhuka iri kuti parapodia riri gills. Kana kweropa gadziriro, kakawanda kuvharwa. Inoitwa ventral uye dorsal yeropa, izvo interconnected annular midziyo. Heart mune zvinenge izvi havana - kufamba ropa rwakaratidza rutapudzo iri dorsal yeropa. Ropa roundworms ringave riine zvakasiyana kufema pigments.

Tsinga ichiri nyore. Pamberi kuguma muviri huru tsinga ganglion, izvo anoita mashandiro anoita uropi. It ngaubve etsinga tambo, iyo inowanikwa duku ganglia neimwe chidimbu muviri - kuunganidza Tutsinga tunofambisa mashoko utwu. Pfungwa dzinokurukurwa kuburikidza maziso, namakemikari akawanda-wanda miviri uye mechanoreceptors, izvo richiparadzirwa munyika muviri honye.

Annelids: ine kubereka uye kukura

Utachiona veboka iri rinogona kuva zvose kwomurume uye hermaphrodites (vashoma zvikuru). Somuenzaniso, ari earthworm ane androgynous dzokubereka nadzo, asi zvakakodzera kuti pakusangana vanhu vaviri. Zvinogona kuitika zvose zvakatipoteredza uye pakatanga dzisingaoneki ari munhukadzi makwara yomukati.

Chimwe dzinonakidza Chokwadi ndechokuti segmented Makonye ane raidudzwa segmentation vane tsika nokukurumidza uye ndichibvunza patsva. Nokuda ichi vamwe mhuka runowanzoitika asexual kubereka. Kugadzirwa zvinenge zvakananga, pasina metamorphosis.

Zvinofanira kucherechedzwa kuti basa annelids zvikuru rinorema. Somuenzaniso, inozivikanwa earthworm ndiye anokonzera aeration ivhu. boka iri zvinosanganisira uye zvikwevaropa, izvo inowanzoshandiswa mushonga ano. Special ukoshi ane hirudin zvinoberekwa chikwevaropa, sezvo thins ropa uye rinoshandiswa Anti-thrombosis nezvimwe zvirwere ngozi.