Urchins dzegungwa - vagari vemvura yakadzika

Pamvura yakadzika yegungwa ne oceanic salinity yakawanda mhuka dzinoshamisa - maruva emvura. Izvi zvinokambaira arthropod ndeyekirasi ye echinoderms. Hedgehog ine muviri muduku (masentimita matatu kusvika ku30), yakafukidzwa nehombodo yemakateti emabhakari, ayo ane nheyo dzakasiyana dzakabatana pamwe chete. Izvo zvinodiwa kuti mhuka iende. Meso ari munzvimbo yepamusoro yemuviri.

Muzvisikwa kune maruva emakungwa emuvara wakasiyana-siyana: tsvuku, machena, madema, maruva, bhuruu, maronda, violet uye grey. Vamwe vanhu vanochinja mararamiro avo zvichienderana nemamiriro emamiriro ezvinhu. Nhamba yose yemakumbo, yakagadzirirwa nemasaga uye inowanikwa mumuviri wose, inogona kuva inopfuura chiuru. Vanokwanisa kutambanudza uye kubvumirana, kuitira kuti mhuka iite nyore nyore kubva kune imwe nzvimbo kuenda kune imwe nzvimbo, pamwe chete nekufamba pamwe nematombo. Kuzarura muromo, kwakasimbiswa neganda rakashata, rinoumbwa nemavhidhi mashanu mashanu kumativi ose ekutsvaga mahwendefa, akapoteredza makona ayo ari kunze kwezvipfeko. Urchins egungwa ane nhengo dzakasiyana dzekuenzanisa-spheria. Izvo zviri pedyo nemuromo wokuzarura. Ikoji yegungwa ine nhengo dzakananga dzokubata - pedicellaria, iri pakati pezvishandiso. Izvo zvakagadzirwa nemisoro ine mvura inouraya inogadzirwa nemaronda anokosha. Uturu hwemhuka hunonyanyisa. Nekubatsira kwake, hedgehog inorwisana nevavengi. Zvisinei, iyi haisi yega basa re pedicellariae - nokuda kwavo, hedgehog inochenesa muviri wayo wezvakakomba uye zvakasvibiswa zvakasiyana-siyana, uye inotora zvinotora uye inozviisa kumuromo.

Inogara arthropods pakadzika kusvika mamita gumi, zvikurukuru pedyo nemakorari emakorari nemhenderekedzo yegungwa. Pasinei nekuvapo kwemhando dzakasiyana-siyana dzekudzivirirwa (nheyo, pedicellariae, mabhomba), mhuka dzinowanzotora vanhu vakawanda, zvakadai semakungwa egungwa, hove, mollusks, zvikara zvemvura uye shiri.

Dzorerai mwana wemunhu anotanga mushure megore rechitatu rehupenyu. Zvepabonde masero mu arthropod ari pedyo nemushure wokura. Makungwa egungwa anogona kubereka mukati megore rose. Zvisinei, kazhinji kacho nguva yekukwirirana inowanikwa munguva inotonhora. Sezvo mhuka idzi dzomumvura dziri dioecious, kubereka kwehedgehogs kunoitika sezvinotevera: Mukadzi anoisa mazai mumvura isina kudzika, mushure mokunge varume vacho vachishambadza. Mamiriyoni evarume nemasero emakumbo uye testicles akabudiswa negungwa arthropods, mumaawa mashomanana, anova mabhola maduku akavharwa ne thin thin villi. Pamusana pokusiya kwavo, mazai anokwanisa kutendeuka nekufamba mumativi ose. Mushure mechinguva, maruva aya anogadzirisa: anotambanudza, achigadzira rakanakisisa ramarara skeleton uye marefu mana akareba. Kubva panguva ino, mazai anorasikirwa neavo akareruka, uye iye zvino anoatakura nenzira dzakasiyana. Munguva yekufamba-famba, kushandiswa kwemaitiro kunoitika. Pasi pezvibvumirano uye mumakwikwi, hove duku yegungwa inoumbwa uye inokura. Pano, maruva anowira pasi kana imwe nzvimbo, achiita nzvimbo itsva. Makumbo okutanga anowanikwa zvakasimba pamatombo, uye mhuka inotanga kukura zvakasimba.

Munyika dziri kumhenderekedzo yegungwa, urchin yegungwa chinhu chinobata hove. Munyika yeMediterranean, ndiro yakabva mukaka uye caviar yemhuka inonyanya kukoshesa. Zvisinei, iyi arthropod inogona kuva nengozi kumunhu. Bathe mugungwa, uye, zvichikurumidza kuenda panzvimbo ye hedgehog, unogona kukuvadza zvakanyanya rutsoka. Kubaya ganda revanhu, nenyuchi dzinowanzoputsa, dzichisiya muviri nemazano ane chepfu. Izvi zvinokonzera kurwadziwa kwakanyanya kwemaawa akawanda. Uturu mune vamwe vamiririri vezvipenyu izvi zvinonyanyisa.

Zvisinei, zvibatsiro zvemakungwa egungwa hazvishamisiki. Vanozivikanwa sevasitori vegungwa rakadzika, nekuda kwekugona kwavo kugadzira carbon dioxide, kuderedza kuwanda kwayo mumhepo. Utumbo hwemhuka hunoshandiswa zvakanyanya mumishonga yekurapa paunenge uchigadzira mishonga.