Zamkati
- Kodi molluscs ndi chiyani? Mitundu ndi Zitsanzo
- Kubereka kwa molluscs
- Zitsanzo zakubalanso kwa ma molluscs
- Kuberekanso kwa molluscs: nkhono wamba (Helix asefera)
- Kubereka kwa molluscs: oyster
THE kubereka kwa mollusc ndi osiyanasiyana monga mitundu ya molluscs yomwe ilipo. Njira zoberekera zimasintha kutengera mtundu wa malo omwe akukhalamo, kaya ndi nyama zapamtunda kapena zam'madzi, ngakhale zonse zimaberekana.
Munkhani iyi ya PeritoAnimalongosola, tidzafotokoza mwatsatanetsatane bwanji kuberekanso kwa molluscs, koma choyamba tiyeni tifotokoze zomwe ma molluscs alidi, zina mwazomwe zimafunikira komanso zofunika kudziwa zaubereki wawo. Momwemonso, tifotokoza mwatsatanetsatane zitsanzo ziwiri za kuberekana kwa molluscs kutengera mitundu.
Kodi molluscs ndi chiyani? Mitundu ndi Zitsanzo
Molluscs amapanga phylum yayikulu ya nyama zopanda mafupa, pafupifupi ochulukirapo ngati nyamakazi. Pali mitundu yambiri yama molluscs, koma onse amagawana mawonekedwe omwe amawabweretsa pamodzi, ngakhale aliyense ali ndi kusintha kwawo. Zinthu izi zomwe tidatchulazi zimaphatikizidwa mgawo la thupi lanu, lomwe limagawidwa pansi zigawo zinayi:
- Chimodzi gawo la cephalic, kumene ziwalo zamaganizidwe ndi ubongo zimakhazikika.
- Chimodzi phazi la sitima Minyewa yambiri kukwawa. Phazi ili limasinthidwa m'magulu ena, monga ma cephalopods, omwe phazi lawo lidasinthiratu.
- Malo opita kumbuyo komwe timapeza zotupa, kumene ziwalo zonunkhira, ma gill (mu molluscs a moyo wam'madzi) ndi ma orifices amthupi monga anus amapezeka.
- Pomaliza, chovalacho. Ndi malo opindika m'thupi, omwe amabisa zoteteza monga ma spikes, zipolopolo ndi poizoni.
Mkati mwa mitundu ya nkhono zam'madzi, pali magulu ena osadziwika kwenikweni, monga gulu la Caudofoveata kapena gulu la Solenogastrea. Molluscs awa amadziwika ndi kukhala mawonekedwe a nyongolotsi ndi thupi lotetezedwa ndi zisonga.
Ma molluscs ena ali ndi morpholoji wakale kwambiri, monga momwe zimakhalira ndi molluscs a m'kalasi la Monoplacophora ndi Polyplacophora. Nyamazi zimakhala ndi phazi lolimba, ngati nkhono, ndipo thupi lawo limatetezedwa ndi chipolopolo chimodzi, ngati monoplacophoras, kapena angapo, polyplacophoras. Nyama za m'gulu loyambalo zimawoneka ngati ziphuphu ndi valavu imodzi, ndipo zomwe zili mgulu lachiwiri zimawoneka ngati nyamakazi yotchuka kwambiri, armadillo.
Mitundu ina ya ma molluscs ndi zipolopolo, zomwe, monga dzinalo likusonyezera, ali nazo zonse thupi lotetezedwa ndi chipolopolo mwa mawonekedwe a njovu ya njovu. Nyama izi ndi za gulu la Scaphopoda, ndipo ndizam'madzi zokha.
Mitundu yodziwika bwino kwambiri ya ma molluscs ndi awa: ma bivalve monga ma clams, oyster ndi mussels; gastropods monga nkhono ndi slugs; ndipo, pamapeto pake, ma cephalopods, omwe ndi octopus, sepia, squid ndi nautilus.
Ngati mukufuna kulowa mdziko la nkhono, musaphonye nkhani yathu pamitundu ya nkhono.
Kubereka kwa molluscs
Pagulu lanyama losiyanasiyana kotero kuti, limatha kukhala m'malo osiyanasiyana, kubereka kwa mollusc ndiyosiyana kwambiri ndikusintha mosiyanasiyana kutengera mtundu wa mollusk.
Molluscs amaberekanso kudzera mu kubereka, ndiye kuti, mkati mwa mtundu uliwonse muli anthu osagonana, akazi kapena amuna molluscs. Komabe, mitundu ina ili azimayi ndipo ngakhale ambiri sangathe kudzipangira fetereza (chifukwa amafunikira kupezeka kwa wina), mitundu ina imatero, monga momwe zimakhalira ndi nkhono zapadziko lapansi.
Mitundu yambiri ya mollusc ndi yam'madzi ndipo, mderali, mtundu waukulu wa umuna ndi wakunja. Mitundu ina yokha ndiyo yomwe ili nayo umuna wamkati, monga momwe zimakhalira ndi cephalopods. Chifukwa chake, nkhono zam'madzi zimakhala ndi umuna wakunja. Amuna ndi akazi amatulutsira masewera awo m'chilengedwe, amapanga feteleza, amakula, amakhala ngati mphutsi zaulere mpaka atakula, mwa mitundu ina yomwe imakhala yosalala kapena kukwawa, ndipo mwa ena, amasambira mwaulere.
Molluscs apadziko lapansi, omwe ndi gastropods am'mapapo kapena nkhono zapadziko lapansi, amakhala ndi njira zotsogola zoberekera. Munthu aliyense amakhala ndi amuna kapena akazi okhaokha, koma amatha kukhala amodzi nthawi yogonana. Amuna amalowetsa umuna kudzera mu mbolo mwa mkazi, momwe mazirawo amapangidwira. Kenako chachikazi chimaikira mazira omwe adakwiriridwa pansi, pomwe amakula.
Zitsanzo zakubalanso kwa ma molluscs
Chiwerengero chachikulu cha mitundu yosiyanasiyana yama molluscs chimaphatikizira kaphatikizidwe kofotokozera za r.kupanga nkhono, choncho, tifotokoza zitsanzo zoyimilira kwambiri za kubereketsa kwa mollusc:
Kuberekanso kwa molluscs: nkhono wamba (Helix asefera)
Nkhono ziwiri zikakula, amakhala okonzeka kuchita kubalana kwa nkhono. M'mbuyomu, musanachite zogonana, nkhono zonse zimakondana. Mgwirizanowu umakhala ndi mayendedwe angapo ozungulira, mikangano ndi kutulutsa kwa mahomoni, komwe kumatha mpaka maola 12.
Nkhono zikakhala pafupi kwambiri, timadziwa kuti "dart wachikondi"Nyumbazi ndizo mivi yoikidwa ndi mahomoni yomwe imadutsa pakhungu la nkhono ndikulimbikitsa kubereka. Pambuyo pake, imodzi mwa nkhonoyi imachotsa mbolo yake maliseche pore ndipo amakumana ndi pore ya mnzake, zokwanira kuti athe kuyika umuna.
Pakadutsa masiku ochepa, nyama yolandira umuna ija imayamba kulowa m'dothi lonyowa ndikuikira mazira ake mchisa chaching'ono. Patapita kanthawi, a nkhono zana kakang'ono katuluka pachisa chimenecho.
Kubereka kwa molluscs: oyster
Nthawi zambiri, nyengo yotentha ikafika ndipo madzi am'nyanja amadzaza kupitirira 24 ºC, nyengo yoswana ya nkhono ifika. Nyama izi zimatulutsa m'madzi ma pheromones omwe amasonyeza kuti ali ndi ana. Izi zikachitika, oyisitara azimayi ndi achimuna kumasula mamiliyoni a ma gamet chimenecho chidzakumane ndi umuna kunja kwa matupi awo.
Kukula kwa dzira kumathamanga kwambiri ndipo patangopita maola ochepa amalowa m'mimba. Patatha milungu ingapo, amagwera pansi penipeni pa miyala, yomwe nthawi zambiri imawongoleredwa ndi zisonyezo zamankhwala achikulire ena. mphutsi izi lowetsani gawo lapansi pogwiritsa ntchito simenti yomwe amapanga ndikupitilira moyo wawo wonse kumeneko.
Ngati mukufuna kuwerenga zina zambiri zofanana ndi Kuberekanso kwa molluscs: kufotokoza ndi zitsanzo, tikukulimbikitsani kuti mulowe mu gawo lathu la Curiosities la nyama.