Sake bugun hydra: Siffar, halaye

Daban-daban jinsin dabbobi, tsaresu daga zamanin da zuwa yau, akwai da yawa. Daga cikinsu akwai m kwayoyin da cewa fiye da ɗari shida shekaru miliyan ci gaba ta wanzu da kuma haifuwa - hydra.

Description da kuma salon

Al'ada mazaunan tafkunan, ruwa tare polyp hydra kira yana nufin coelenterates dabbobi. Yana da wani gelatinous translucent tube wani tsawon 1 cm. Daya karshen, a kan abin da asali tafin kafa a haɗe zuwa ruwa shuke-shuke. A gefe guda akwai wani buga} wai jiki tare da jam'i (6 zuwa 12) tentacles. Sun iya budewa zuwa dama santimita a tsawon da ake amfani da su bincika don ganima, wanda paralyzes da hydra harbin prick, tightens ta tentacles zuwa cikin bakin da aka haɗiye shi. Sune tushen abinci daphnia, sauro larvae, kifi soya, Cyclops. Dangane da launi na abinci da aka canza da kuma zanen translucent hydra jiki.

Saboda da ƙanƙancewa da shakatawa na Musulunci-da-tsoka Kwayoyin cewa jiki iya kunkuntar da thicken, mika wa gefe da kuma sannu a hankali matsar kusa. Kawai sa, mafi a cikin motsi da kuma rai mai zaman kanta rayuwa kamar ciki ruwa tare hydra. Sake bugun ne shi, duk da wannan, akwai wani fairly high kudi da kuma hanyoyi daban-daban.

iri hydra

Dabbobi nau'I hudu na ruwa tare polyps. Su ne quite a bit daban-daban daga juna. Manyan jinsunan da threadlike tentacles, sau da yawa wucewa da tsawon jiki, da ake kira Pelmatohydra oligactis (dlinnostebelchataya hydra). Wani irin, jiki tapering da tafin kafa, aka kira Hydra vulgaris ko ruwan kasa (kowa). Hydra attennata (na bakin ciki ko m) shi ne kama a bayyanar to santsi dukan tsawon na bututu da kadan ya fi tsayi, kamar yadda idan aka kwatanta da jiki, tentacles. Green hydra kira Chlorohydra viridissima, don haka mai suna saboda da grassy launi, wanda ba shi da aure-celled algae, wanda ya samar da jiki da oxygen.

kiwo Features

Yana kawai wanzu da kuma iya haifa jima'i da kuma asexually. A lokacin rani a lõkacin da ruwa warms sama, da hydra haifuwa faruwa yafi by dake tasowa. Jinsi daya Kwayoyin suna kafa a ectoderm na hydra kawai a cikin kaka, tare da farko na sanyi weather. By hunturu, da manya mutu, da barin qwai daga wanda sabon ƙarni bayyana a cikin bazara.

agamobium

A sharadi gwargwado, da hydra ne yawanci karbe ta dake tasowa. Da farko, akwai wani kadan protrusion a jiki bango, wanda sannu a hankali ya jũya a cikin wani karamin karo (koda). A hankali, ta ƙãra size, da mikewa da shi, ya kafa tentacles, daga cikinsu za mu iya la'akari da bakinka. A farko, matasa Hydra an haɗa zuwa ga uwar ta jiki tare da taimakon wani bakin ciki zangarniya. Bayan wani lokaci, matasa aiwatar raba da kuma fara wani zaman kanta rayuwa. Wannan tsari ne sosai kama da yadda tsire-tsire ci gaba daga buds gudun hijira, don haka sake yiwuwar tohowarsu, kira dake tasowa hydra.

syngenesis

Lokacin da za samun sanyi ko yanayin ne ba sosai m ga rai na hydra (bushe kandami, ko tsawo azumi), a cikin ectoderm samuwar jima'i Kwayoyin. A m Layer na ƙananan jiki rabo kafa qwai, kuma musamman bumps (namiji gonads) cewa suna located kusa da bakin, tasowa maniyyi. Kowace daga cikinsu yana da wani dogon flagellum. Tare da shi, maniyyi za a iya koma a cikin ruwa don isa kwai da kuma takin da shi. Tun jima'i haifuwa hydra auku a cikin fall, sakamakon tayi rufe da shi a m daina kai hare hare, kuma ya ginu a kan tushe na kandami domin hunturu, da kuma kawai tare da zuwan spring fara ci gaba.

jam sel

Wadannan ruwa tare polyps a cikin mafi yawan lokuta suna iri guda ba (maniyyi da kuma qwai suna kafa a kan wasu mutane daban), hermaphroditism a Hydra ne musamman rare. Tare da sanyaya auku a cikin ectoderm shafin gonads (gonadal). Sex Kwayoyin suna kafa a jikin hydra na tsaka-tsaki da kuma Kwayoyin kasu kashi mace (kwai) da kuma namiji (maniyyi). A kwai kama wani amoeba da ƙarya kafar. Ya ke tsiro da sauri sosai, yayin da mamaye matsakaici Kwayoyin a cikin unguwa. A lokacin ripening, da diamita ne 0.5 zuwa 1 mm. Hydra haifuwa amfani da qwai da kuma kira jima'i.

Maniyyi Kwayoyin suna da kamar flagellate protozoa. Karban maganar hydra jiki da kuma iyo a ruwa, tare da taimakon samuwa flagellum, suka tafi a search na sauran mutane.

hadi

Lokacin da maniyyi iyo ga mutane tare da kwai da kuma shiga cikin wadannan nuclei fis biyu Kwayoyin. Bayan wannan tsari, da cell zama mafi taso siffar saboda pseudopodia kõma. Kafa a kan bãyan tẽkun, tare da wani lokacin farin ciki ƙwanso appendages a cikin nau'i na spikes. Kafin farko na hunturu Hydra mutu. A kwai ya rage da rai da kuma gudanar a cikin rashin himma, zama a kasa na kandami har spring. Lokacin da yanayin samun dumi, overwintered cell da dakile ci gaba da girma da kuma fara raba, forming farko rudiments na hanji lumen, sa'an nan da tentacles. Sa'an nan da kwai harsashi da aka karya da kuma da haske ya bayyana matasa hydra.

farfadowa

Features hydra haifuwa hada har yanzu da kuma ban mamaki ikon warke, a sakamakon wanda aka sake halitta sabon mutum. Daga mai raba yanki jiki constituting wani lokacin kasa da daya bisa ɗari na jimlar girma, shi yana iya samar da wani dukan kwayoyin.

Ya kamata a yanke cikin guda da hydra, kamar yadda nan da nan jawo farfadowa tsari, a cikin abin da kowane yanki yakan mallaki bakinsa tentacles da kuma tafin kafa. Ko da a cikin karni na goma sha bakwai masanin kimiyya gudanar da wani gwaji, lokacin da Hanyar matching daban-daban halves na'ura mai aiki da karfin ruwa samu ko da Semiglavaya kwayoyin. Yana da aka tun sa'an nan cewa ruwa tare polyp kuma samu da sunan. Wannan ikon za a iya daukarsa a matsayin wata hanya hydra haifuwa.

A hatsari hydra a cikin akwatin kifaye

Domin kifi, da ciwon girma fiye da hudu santimita, hydra ba m. Ã'a, sunã bauta wa, kamar yadda wani irin nuna alama na yadda da kyau da mai ciyarwa da kifi. Idan abinci ne da aka ba da yawa, shi karya ruwa a cikin kankanin guda, sa'an nan za ka iya ganin yadda sauri fara ninka hydra a cikin akwatin kifaye. Don rage musu na abinci, rage adadin na abinci.

A cikin akwatin kifaye, gida zuwa wani sosai kankanin kifi, ko soya, da fitowan da kuma yaduwa daga cikin hydra ne quite m. Wannan zai iya kai wa ga wani iri-iri da matsaloli. Da farko toya bace, da kuma sauran kifaye za kullum fuskanci sinadaran konewa, wanda sa da tentacles hydra. A cikin tanki jiki iya samun wani live abinci, ya kawo daga wata halitta jiki na ruwa shuke-shuke da sauransu. D.

Don magance hydra kamata zabi hanyoyin da cewa ba su iya kawo lahani ga kifi rai a cikin akwatin kifaye. A mafi sauki hanyar amfani da hydra soyayya ga haske. Ko da yake shi ya zauna wani asiri da yadda ta tsinkayen da shi a cikin rashi na gani gabobin. Wajibi ne a take hana duk ganuwar da akwatin kifaye, amma daya to wanda leans a cikin gilashin guda size. A lokacin da rana, da hydra motsi kusa da haske da kuma sanya a farfajiya na gilashi. Barin kawai ta a hankali don samun - da kuma kifi ne ba cikin hadari.

Saboda ta high ikon haifa a karkashin akwatin kifaye hydra iya sauri asali. Wannan ya kamata a dauka a cikin asusunka da kuma saka idanu a hankali su bayyanar a lokacin da za a kauce wa matsala.