Gastropods: tsarin, m ayyuka, haifuwa

Gastropod mollusks, ko dodon kodi suna dauke da wani wajen manyan aji na dabbobi, wanda a yau yana da game da dubu 100 jinsunan. Kusan duk tsofaffin mambobin kungiyar sun marine kwayoyin, wanda a cikin shakka daga juyin halitta sun koma ga nazarin sasannin da ruwa tare rayuwa. Da aka sani kuma Shellfish parasites, amma ba sosai. Sha'awa, wasu jinsuna sun koma a karo na biyu zuwa ga ruwa hanyarsa ta rayuwa, su da kakanninsu suka terrestrial kwayoyin.

Gastropods: jiki gini

A jikin wakilan irin wannan ne zuwa kashi a kai ofishin, jiki, murdede kafafu. A kan shugaban mafi jinsunan da daya ko biyu da nau'i-nau'i na tentacles. Kamar yadda ga akwati, shi ne asymmetrical kuma shi ne gaba daya a cikin kwatami. Nutse a gastropod na game da suranta wani karkace da lambar daban na curls. Kafa hidima ga motsi da kuma kayyade - yana da wani musamman tafin kafa a kan underside. A gaggawa, da kai, kuma da kafa tsaurara ciki da harsashi.

Alkyabbar rami na dabba shi ne a cikin ƙananan harsashi jũya. Wadannan ducts bude excretory tsarin, kazalika da dubura. Wasu mambobin na aji a nan shi ne mafita ducts na haihuwa tsarin. Yana da ban sha'awa cewa wani ɓangare na alkyabbar a marine rai ya samo asali da gills, kuma a cikin terrestrial mazaunan ana sa haske.

Integument gabatar epithelium, wanda shi ne mai arziki a cikin takamaiman gland da cewa samar da gamsai.

Gastropods: ciki tsarin

Narkewa kamar tsarin zai fara baka rami, da bude daga wanda an zubar a kan underside na shugaban yankin. A makogwaro ne takamaiman mahaluži kira radula, wanda shi ne mai chitin grater tare da abinci ne murƙushe kuma shiga cikin esophagus. Next zo da ciki (a nan bude hanta ducts) da hanji, da kawo rami.

A excretory tsarin a mafi jinsunan wakilta daya koda, ko da yake akwai dabbobi, da kuma tare da biyu jikinsu. Sistem sakulasan ne sistem na nufin lacunarity irin da kunshi da zuciya da kuma jijiyoyin bugun gini tsarin gibba.

Tsarin Numfashi wakilta gills ko huhu. A marine wakilan, kamar yadda mai mulkin, ana iya gani ctenidium ko primary gills. A cikin wannan jinsin da cewa sun koma wani biyu ruwa rayuwa, gill aiki daukan alkyabbar. Ground wakilan an halin da hadadden tsarin numfashi, wanda ya ƙunshi wata hur tsarin da tracheal shambura, wanda diverges kuma daukawa iska to duk sassa na jiki.

To kafa da kuma juyayi tsarin, wanda ake cewa yaxuwa-Nau'in mahaɗar. Mafi yawan dabbobi da biyar nau'i-nau'i daga asali ganglia. Shi ne ya kamata a lura da kyau-raya ji gabobin, ciki har da idanu da kuma tactile rabe.

Gastropods iya zama wani iri guda ba (marine jinsunan) da kuma dauke da lalurar mata (ƙasar da ruwa tare da wakilan). Hadi yakan auku a jikin mace, sa'an nan ta lays ta qwai. Yana da ban sha'awa cewa a wani lokaci gastropod kayansa mãsu yawa qwai a lokaci daya, kafa kama.

A qwai an rufe tare da wani kwantena da wani kananan murfi a kan saman. Wani lokaci zuwa waje masonry amfani da gamsai a haɗe infertile, komai capsules. Wannan dabara yana da wani tsaron gida hali - a predator gnaws wasu komai kwai, sa'an nan ya fita. Kamar yadda ci gaba, shi zai iya zama duka biyu kai tsaye da kuma samar da larvae.

Gastropods: mafi m siffofin

Mafi shahara memba na aji ne da ake kira katantanwa. Ya kamata a lura da cewa manyan kungiyoyin dabbobi na iya cutar da amfanin gona na inabi. A daidai wannan lokaci, musamman girma katantanwa a wasu kasashe suna dauke su da wani tsada delicacy.

Kuma wasu matan aure da hannu tutsar sulug - a kananan mollusc tare da rage kwatami, wanda ciyarwa da shuke-shuke. Wannan shi ne wani real kwaro na kayan lambu amfanin gona, don haka ya hallaka jama'a da sinadarai suna amfani.