Uphuhliso ngqo ngu uphawu ... Postembryonic Development ngqo: Imizekelo

Development yinto ebalulekileyo ebomini. Luqala nge iqanda kwaye iphela nge ukufikisa. Kwixesha post-osandul luphawulwa luphuhliso ngqo nengxelo-ntetho. uphuhliso ngqo - yinkqubo zebhayoloji apho omzimba multicellular likhula kunye nokunyuka, nzima umbutho. Le meko kuvamile ukuba abantu, intlanzi, iintaka kunye nezilwanyana ezanyisayo.

uphuhliso ngokungathanga ngqo - inkqubo apho umbungu ibe inxaxheba oqolileyo ngamnye kwisigaba mibungu, sasihamba milo. Oku kwenzeka, umzekelo, ezingenamqolo ezininzi eziphila.

ixesha ingakumbi post-osandul

Amaxesha zophuhliso post-osandul sikhatshwe utshintsho iimpawu morphological, imikhwa kunye eziphila. Ukwalathisa uphuhliso msebenzi iimpawu kukuba emva kokuzalwa umbungu ikopi elincinane omdala, oko iyahluka kuphela ubungakanani kunye nokungabikho iimpawu ezithile apho zifumaneka kuphela ixesha. Umzekelo bekuya kuba uphuhliso womntu, izilwanyana kunye nabanye ezirhubuluzayo. uphuhliso ngokungathanga Zinjalo ezingenamqolo, izilwanyana kunye emanzini. Kulo mzekelo, mbungu umahluko ebalulekileyo kuthelekiswa izilwanyana abadala. Njengoko umzekelo ibhabhathane efanelekileyo zesiqhelo. Kuphela emva kokuba ziza kugqitywa zigaba eziliqela zophuhliso, ngumbungu encinane ukutshintsha ngaphaya ingqalelo.

ngqi zophuhliso

Amaxesha uphuhliso post-osandul ziquka ongumntwana eqongeni, ukukhula kunye ukwaluphala.

• ixesha lolutsha iquka ixesha ukusuka ekuzalweni ukuya ekufikiseni. Eli nyathelo lilandelwa lithathelwe indawo entsha. Kubalulekile ukuphawula ukuba izilwanyana ezininzi ezirhubuluzayo, obubonakala ngokuba yincwadi evuliweyo ngendlela ngqo yophuhliso post-osandul, ephuhliswe efanayo. Umahluko nje ixesha elimisiweyo. Imisa ixesha ukufikisa.

• ixesha lokuvuthwa ebizwa kwinqanaba lokuzala, luphawulwa ukuyeka ukukhula. Xa umzimba kukho self-ukuvuselelwa kwezakhiwo ezithile kunye ukusinyamekela ngcembe.
• ngokwaluphala ixesha deceleration kulandelwa ziinkqubo zokucutha. Ngokuqhelekileyo, ukuhla ubunzima bomzimba waphawula. Ukuba akukhange kubekho ungenelelo zinamandla, ukufa yendalo lwenzeka xa iinkqubo ebalulekileyo ngenxa abazimisele phantsi zonke iinkqubo aphele ukuba umsebenzi.

Uphuhliso ngqo: imizekelo kunye nezigaba

Makhe sijonge indlela kuvela ubomi umntu omtsha. uphuhliso ngqo nengxelo- - igama echaza iinkqubo ezahlukeneyo inkunkuma yezilwanyana, oqala iqanda. Ngexesha uphuhliso post-osandul ekugqibeleni kwasekwa iinkqubo omzimba, kukho ukukhula, ekukhuleni kwengqondo ngokwesondo , kulandele enye yomculo. Okulandelayo kukuba ukuguga, kwaye xa kungekho yokungenelela lwangaphandle sondela yendalo.

• Ngoko nangoko emva kokuzalwa iqala uthotho zinguquko. Ngeli xesha ezahlukeneyo kancinane kumzimba abadala zombini ngaphandle ngaphakathi.
• Inqanaba lesibini - inguqu ibe umzimba entsha ngokupheleleyo. Olukhulu - a utshintsho postembryonic kwimilo emzimbeni kunye alternating zigaba eziliqela.
• Isigaba sesithathu - Inqanaba lokugqibela, ophela nge ukufikisa nokuzala.

Iimpawu of the ngqo

uphuhliso ngokungathanga ngqo uphawu eziphilayo multicellular. Of salityaziswa Umbungu iqanda, leyo ngaphakathi nangaphandle alifani umntu omdala. Ngokutsho isakhiwo into elula ngakumbi, ngokuqhelekileyo ukuba isisombululo ezincinane. imbonakalo yazo, kusenokuba yinto efanayo kude izinyanya zabo zikude. Umzekelo bekuya kuba zamasele Umbungu ezifana nese-.

Ngaphandle, i tadpole ubakhumbuza kakhulu sentlanzi encinane. Ngenxa amalungu ezikhethekileyo mibungu, yena uyakwazi ukuphila ubomi eyahlukileyo ngokupheleleyo ngaphezu zezinto abaqolileyo. Nkqu umahluko sex ongeyona nakuzuza nto, ngoko isiqingatha imibungu ayikwazi kuvavanywa. Xa inani elithile kweentlobo, eli nqanaba lophuhliso ubambe inxalenye enkulu yobomi babo.

Le olukhulu olukhulu

Kuphuhliso engangqalanga isilwanyana usana yahluke gqitha ukusuka uhlobo abaqolileyo eziliqela iimpawu yokwakheka. Umbungu ukukhuhla evela amaqanda kwifomu kwindawo apho sengukuqo olukhulu olukhulu phambi kokuba kufikelela kwisigaba yayo abadala. uphuhliso ngokungathanga ngqo uphawu izilwanyana babeke amaqanda amaninzi. Ezi abathile echinoderms, izilwanyana eziphila emhlabeni nasemanzini kunye nezinambuzane (amabhabhathane, oohlabamanzi, amasele njalo njalo). Imibungu ezi zidalwa basoloko indawo eyahlukileyo ngokupheleleyo eziphilayo ngaphezu isilwanyana abadala. Iphila, ukukhula kunye ngaxa ethile ingaguqulwa njani na ibe sisilwanyana abadala. Ezi olukhulu jikelele kunye utshintsho ezininzi nokomzimba.

Nobubi lophuhliso ngqo

Plus nophuhliso ngqo kukuba ukukhula kufuneka amandla ngaphantsi kakhulu kwaye izithako kubalulekile, kuba akukho ngokutsha jikelele awufumaneki emzimbeni. Zisasuka kukuba uphuhliso umbungu kufuneka koovimba enkulu izakhi amaqanda okanye uqumbile esibelekweni.

Umba embi kukuba phakathi izilwanyana abaselula kunye omdala inokuba ukhuphiswano ngaphakathi kwiintlobo eziphila kuzo kunye nemithombo ukutya ziyafana.

Iingenelo neengozi ngqo

Ngenxa yokuba izinto eziphilayo zohlobo ngqo lokuphila ezahlukeneyo yayigcinwa eziphilayo, ukhuphiswano phakathi kombungu kunye abadala ngokuqhelekileyo musa zenzeke. Uncedo kwakhona into yokuba ezidla zezidalwa ungenzi ukunceda ukwandisa indawo ingqiqo yayo yokuhlala. Phakathi bobubi kuyimfuneko ukuba ucacise ukuba uphuhliso engangqalanga izilwanyana abadala rhoqo ithatha ixesha elide. Kuba utshintshwano qualitative kufuneka isixa esikhulu izondlo namandla.

Types of ngqo

Ezi ndidi zilandelayo zophuhliso ngqo: olukhulu ngokupheleleyo kunye noluphakathi. Kwinkqubela phambili epheleleyo ngqo conversion uphawu izinambuzane (kungonakalisi nundu, amabhungane, ezinye Hymenoptera). ezidla lwamaJuda baqala ukudla ukukhanya, akhule uze ube cocoons kulungisiwe. Kule meko, onke amalungu aloo mzimba ndiludilize, kunye nezinto zeselula yesiphumo kwaye izondlo elaye asisiseko ukuze kwakhiwe a imizimba ezahlukeneyo ngokupheleleyo, uphawu eziphilayo abadala.

olukhulu Partial ngqo iimpawu yophuhliso postembryonic kuzo zonke iintlobo zentlanzi kunye eziphila, ezinye iintlobo ziimpethu, izilwanyana kunye nezinambuzane. Umahluko omkhulu ukusuka ukuguqula epheleleyo yi nokungabikho Cocoon yeqonga.

Indima eziphilayo kweqonga mibungu

Le mibungu Isigaba - ithuba lokukhula esebenzayo kunye nokugcinwa kwezondlo. Imbonakalo idla eyahlukileyo kakhulu ukusuka ifomu omdala. Baye izakhiwo zabo ezizodwa kunye namaqumrhu, ecingisisiweyo abantu ekhula. ukudla kwabo zisenokubonakala zahlukile. Ezidla badla malilungiselelwe bume. Umzekelo, tadpoles bahlala phantse kuphela emanzini, kodwa unako ubomi emhlabeni, njengokuba sele abadala. Ezinye iintlobo zikwinqanaba abadala ayinakutshintshwa, lo gama kwindawo yazo nyathelo kwaye usebenzise obu buchule xa uhambisa kunye nokwandisa indawo yokuhlala.