Ontogenesis - inqubo ukubalekela?

Ontogenesis - ukuthuthukiswa kohlelo, abacacisiwe olulodwa. Le nqubo ihlanganisa inkathi kusukela ngomzuzu gametes compounds futhi lapho kufa umzimba. Ukutadisha naso sonke lesi sikhathi span biology zentuthuko. I ontogeny zezitshalo nezilwane kwenzeka ngendlela ehlukile bakhe emabhola emacenjini abo ehlukene taxonomic.

Njengengxenye lesi sihloko sikhuluma ukuthuthukiswa kwezilwane ezinamangqamuzana amaningi. Nakuba izigaba eyinhloko ontogeny, amaphethini yayo jikelele kukhona isici simila.

Luqala ngokunikela isikhashana lapho iqanda is avundiswa ngu isidoda, noma wenze esinye isenzo. Khona-ke uqala ukuhlukana nomuntu obuthandana naye, okungukuthi, kukhona division zibe amangqamuzana amaningana ezincane. Lapho inombolo emakhulwini amaningana noma ngisho nezinkulungwane zabantu ekushintsheni ukuma umbungu. Kuyo avele nakhululwa ezifundisweni zokucathula izitho ezihlukahlukene. Ngo imibungu yezilwane ezinomgogodla amathumbu ngokuyinhloko kwakheka, isimiso sezinzwa esiyinhloko, imisindo, imisipha, nokunye. N. eziyinkimbinkimbi yalezi zinhlelo ubizwa ngokuthi morphogenesis.

Ngemva ke, noma kanyekanye ne-germ cells babe izici ukumelana okukuvumela ukuhlukanisa kubo kusukela nomunye by Ukwakheka kwamakhemikhali, isakhiwo, ukuma.

Njengoba sekushiwo, ontogenesis - inqubo ukuthi uyaqhubeka emva umbungu ozozalwa (noma dweba). Kubonakala kulesigaba yokuguqukela kwesinye isimo (labo abantu abahlola izibungu esiteji), ukukhula, ngokuqhubekayo ubuyekeza izindonga cell emathunjini, izitho ze-lymph, igazi. inqubo yokuguga okukhulunywe ontogenesis, akubona bonke ososayensi.

Imaphi amandla elawula inqubo eyinkimbinkimbi kangaka? Nakuba kungekho impendulo egculisayo yalo mbuzo. Nokho, abanye regularities ebalulekile ontogenesis okwamanje ifakiwe.

Okokuqala, eduze uxhumana ngokuphelele wonke amaseli lwegciwane. Ngamunye "uyazi" ukuthi cishe ncamashi lapho likhona. Ngokwesibonelo, uma ususa ingxenye encane kulokuphelele embryo yoke, amaseli abasala ngokushesha bacale kutfutfukisa ehlukile ngokwendlela isimo linqoba. Ngale ndlela, okungenani ingxenye ukuqeda isici bese umbungu ingaqala evamile. Mhlawumbe amaseli "ukuxhumana" nomunye ngokusebenzisa nolwelwesi elakhelene.

Okwesibili, iziqalo bokuqala umbungu nethonya on nomunye, nakuba ekhuthaza ukuthuthukiswa endaweni nesiqondiso esinikezwe. Ngokwesibonelo, e ezilwaneni ezinomgogodla ezinamehlo lokhu kwenzeka kanje. I rudiment ka kuzithinta (notochord) kuthinta ebusweni kwezicubu umbungu ukuthi ngihlangane nabo ke, futhi ubakhuthaza ukuba yakha rudiment we isimiso sezinzwa esiyinhloko. ekusebenzisaneni ezinjalo eziphilayo libizwa lokungeniswa sombungu. Abanye kula mathonya, kuhlanganise, ngokuthi izinto ezibalwe ngenhla okuyinto ekubhebhetselisa kusukela omunye komunye lwegciwane. Abanye akunakwenzeka ngaphandle ukuthintana ngqo phakathi emangqamuzaneni umklamo ukuthi basebenzisane. Ngokwesibonelo, lokungeniswa lomunye nemilenze e izilwane zasemhlabeni kubangelwa ukuphambukisa esiphela emsipheni noma umbungu ukufakelwa ngaphansi kwesikhumba nomzimba angaphandle.

Ngaphezu kwalokho, ingqamuzana lunye inomthelela zamagama amaprotheni, ukulandelana acid acid lapho isakhi sofuzo kunqunywa Ukudayela. Kungani cha bonke of them abakhuthele, futhi, akwaziwa.

Ngakho, ontogenesis - kuyinqubo ukuthi namanje ikhanga ososayensi, izazi zezinto eziphilayo ziye hhayi kuphela kanye zezibalo, osokhemisi, izazi zesayensi. Bazama ukudala imfundiso yokuziphendukela ekuthuthukiseni a eziphilayo, okuyinto ke ezazizosiza ukwenza eziningi nezinye okutholakele. Phela, ukuhlola ontogeny - kusho hhayi kuphela banombono. Lo msebenzi ibaluleke kakhulu esisebenzayo, kusukela okutholakele kungasiza ekwelapheni izimila ebulalayo nezinye ngeziphambeko kusukela ukuthuthukiswa evamile ukuphatha ukuthuthukiswa zezilwane nezitshalo, ekulweni namathonya alimazayo kwemvelo.