Big truncatula matsayin wakilin Shellfish

Manyan kandami katantanwa ne na hali wakilin ruwa tare gastropods. A wannan labarin, za mu duba a cikin rai yanayi da hankula fasali na tsarin da dabba.

Shellfish: fasali na kungiyar

Fassara daga Latin sunan wannan irin dabba ne "m-bodied". Wasu daga cikin su suna da wani kwatami. Amma a cikin wani akwati, jikin wadannan halittu sun ne taushi da kuma wadanda ba segmented. Found su zama a sabo ne da kuma gishiri ruwaye. Saboda haka, mussel da perlovitsy rayuwa a cikin tafkunan da tabkuna, da kuma mussels da dorinar ruwa - a tekuna. Katantanwa da slugs za a iya samu a cikin m yankunan ƙasar.

A kilam ta jiki za a iya raba sassa uku: kai da jiki da kuma kafa. Mafi yawansu ba su motsa a hankali isa, saboda tsokoki aka wakilta raba bim. All Shellfish akwati kewaye da wata Musulunci na fata, da ake kira da alkyabba.

Basics na rarrabuwa

Dangane da tsarin siffofin rarrabe uku azuzuwan na mollusks. A halayyar alama ne gyara na cephalopod tentacle kafafu. Suna located a kusa da bakinsa. A cikin tentacles ne suckers da wanda dabbobi kama da rike ganima. Cephalopods ne iya jet propulsion godiya ga na musamman tubular samuwar - mazurari. Wakilai daga wannan aji ne squids, cuttlefish da octopuses.

Bivalves ne perlovitsy, zebra mussel, mussels kuma oysters. Su duk da jiki kunsha na jiki da kuma kafafu, kazalika da harsashi na biyu bawuloli. Big truncatula - wakilin gastropods. Bari mu bincika da tsarin a zurfafe.

Big truncatula - wakilin gastropods

Manyan ko na kowa kandami katantanwa da aka samu a cikin sabo ruwa, arziki ciyayi. Jikinsa, kamar duk gastropods, ta ƙunshi wani shugaban, jiki da kuma kafafu. A tsakiyar part aka located gaba daya a ciki da spirally swirling bawo kunshi lemun tsami, da rufi Layer hornlike abu. Wannan irin gidaje da kuma tsari. Nutse a manyan kandami katantanwa karkace juya. Account ga a kalla 4-5 jũya. Yana yana da wani rami, wanda ake kira da bakinka. Ta hanyar shi ne kõma a cikin kai da kafa. Nutse a manyan kandami katantanwa da jaraba nada a gaggawa rufe ta musamman murfin. Wannan tsari ne da wani ƙarin kariya a kan abokan gābansu.

A tsarin da wani babban kandami katantanwa

Me Shellfish, wanda wakiltar truncatula, kira gastropods? Duk da al'amarin a cikin tsarin jikinsu. Tsakanin sassa ne babu bayyana iyakoki. The kafa ne lebur da kuma murdede tsinkaya, cikakken mamaye na ciki sashi na jiki. Its surface da sirrin gamsai, wanda ya samar da sauki zamiya a kan daban-daban substrates da kuma wani mai ruwa-ruwa fim.

A shugaban babban kandami katantanwa ne a biyu daga tentacles. Wannan tactile gabobin. Idan ka shãfe su, kilam jan da kai a cikin kwatami. A tushe ne located tentacles ido. Mollusks ne ma gabobin da ma'auni. Suna wakilta kananan kumfa, a cikin abin da musamman maraƙi located. Canza wuri daga wadannan Tsarin rike da sikeli Shellfish.

Sistem da numfashi tsarin

Manyan kandami katantanwa ne da jijiyoyi da wani bude irin. Ya ƙunshi wani biyu gidajen zuciya da jijiyoyin bugun gini tsarin. Jini gauraye da coelomic ruwa, wanke duk tsokoki da kuma gabobin. shi ya zo daga zuciya a cikin jijiyoyi, da kuma a gaban shugabanci motsa ta cikin jijiyoyinmu. Duk da cewa babban kandami katantanwa zaune a cikin ruwa, ya numfasawa na musamman na yanayi oxygen. Don yin wannan, da dabba da aka mayar da su cikin surface na ruwa da kuma bude m numfashi rami, located a gefen kwatami. Yana take kaiwa zuwa huhu a cikin abin da jini oxygenation.

Narkewa kamar, kuma excretory tsarin

Manyan kandami katantanwa ne motsi sannu a hankali, amma lalle. Me ya sa ya ko da yaushe "tafiya"? Shellfish motsi a search na abinci, scraping shi tare da karkashin ruwa abubuwa ta amfani da muƙamuƙi da graters. A karshen ne 'yan layuka na jaraba hakora. A tsari na gina jiki gaggauta tsakiyan nonon enzymes na narkewa kamar gland - salivary da kuma hanta.

Sama da shugaban kandami bude dubura. Kuma kusa da shi yana buɗewa kwarara daga cikin urinary tsarin. A karshen da aka wakilta wani Kadaitaccen koda da kuma ureter daga rami.

Sake bugun, kuma ci gaba da

Bisa ga irin na haihuwa tsarin mai girma kandami katantanwa ne hermaphrodite. Wannan yana nufin cewa a jikinsa an kafa kamar yadda mace da namiji Kwayoyin. Hadi a cikin wadannan mollusks ciki. A sakamakon haka, shi ne cudanyar maniyyi. Shellfish zygote aka sanya a cikin gelatinous kirtani cewa an haɗe zuwa karkashin ruwa abubuwa. A sakamakon haka, masu tasowa, matasa mutane bakin ciki tare da harsashi.

Saboda haka takaita: great kandami katantanwa ne wakilin gastropods. Wadannan ne na hali mazaunan sabo kududdufai. Mollusks da uku jiki sassan: shugaban, gangar jikin da kafa, kazalika da spirally Twisted harsashi.