UMary Allen
Isingeniso: Ukuqonda Izigaba Ezine Zokukhula
Ukukhula kwezilwane kungahlukaniswa ngezigaba ezine: iqanda, isibungu, isiphungumangathi kanye nesidala. Lezi zigaba zibhekwa ezilwaneni eziningi, ikakhulukazi izinambuzane, ezibhekana nokushintshashintsha okuphelele. Isigaba samaqanda sisho isikhathi lapho isilwane sizalwa eqandeni. Isigaba sezibungu, esaziwa nangokuthi isigaba samacimbi ezimvemvaneni, yilapho isilwane senza izinguquko ezinkulu ekubukekeni kwaso. Isigaba se-pupal yilapho isilwane sishintshashintsha, sishintsha sisuka ekubeni isibungu sibe umuntu omdala. Ekugcineni, isigaba somuntu omdala yilapho isilwane sifika ekuvuthweni futhi siyakwazi ukuzala.
Izigaba Ezine Zokukhula: Iqanda, Isibungu, Isiphungumangathi, Umuntu Omdala
Izigaba ezine zokukhula zibonakala ezilwaneni eziningi, kodwa kukhona okuhlukile. Izinambuzane, njengezimvemvane, amabhu, amabhungane, nezimpukane, ziyizilwane ezivame kakhulu ezishintsha ngokuphelele. Kule nqubo, isilwane sidlula ezigabeni ezine zokukhula, ezihlanganisa iqanda, isibungu, isiphungumangathi nezigaba zabantu abadala. Ezinye izilwane, njengezilwane ezihlala emanzini nasemanzini, izinhlanzi, izilwane ezihuquzelayo, nezilwane ezincelisayo, zithola izinhlobo ezahlukene zokukhula.
Okuhlukile Ezigabeni Ezine Zokukhula Ezilwaneni
Nakuba izilwane eziningi zidlula ezigabeni ezine zokukhula, kukhona okuhlukile. Ezinye izilwane zeqa isigaba esisodwa noma ngaphezulu sokukhula, kuyilapho ezinye zenza izinhlobo ezahlukene zokuguquguquka. Isibonelo, ezinye izinambuzane zithola i-metamorphosis engaphelele, kuyilapho ezinye zithuthuka ngokuqondile. Ezinye izinhlanzi nezilwane ezihuquzelayo zikhula ngokuqhubekayo, kuyilapho izilwane ezincelisayo zikhula ngokuqondile.
Izilwane Ezeqa Isigaba Seqanda Sokukhula
Ezinye izilwane, njengezinhlobo ezithile zezinhlanzi, izilwane ezihuquzelayo, nezilwane ezincelisayo, azidluli esigabeni sokukhula kwamaqanda. Lezi zilwane esikhundleni salokho ziyakhula futhi zichanyuselwe zisuka esibelethweni sikanina, ngenqubo eyaziwa ngokuthi i-viviparity. Izilwane ezi-Viviparous zizalwa zakhiwe ngokugcwele, futhi azidingi iqanda ukuze zikhule. Izibonelo zezilwane ze-viviparous zihlanganisa imikhomo, amahlengethwa, nezinye izinhlobo zezinyoka.
Izilwane ezeqa Isigaba Sokukhula Kwezibungu
Nakuba izinambuzane eziningi ziba nezibungu, ezinye izinhlobo zezinambuzane ziseqa lesi sigaba ngokuphelele. Lezi zinambuzane ziba ne-metamorphosis engaphelele, lapho zikhula khona ngokuqondile zisuka ku-nymph ziye kumuntu omdala, ngaphandle kokudlula ezigabeni zezibungu noma ze-pupal. Izibonelo zalezi zinambuzane zihlanganisa izintethe, onyendle namaphela.
Izilwane Ezeqa Isigaba Sokukhula Kweziphungumangathi
Ezinye izinambuzane, njengezimpukane, izimpukane, nojekamanzi, azifiki esigabeni sokukhula. Esikhundleni salokho, zikhula zisuka ku-nymph zibe umuntu omdala, ngenqubo eyaziwa ngokuthi i-metamorphosis engaphelele. Lezi zinambuzane zikhulisa amaphiko nezinye izici zabantu abadala ngenkathi zisesigabeni sazo se-nymph.
Izilwane Ezeqa Isigaba Sokukhula Kwabantu Abadala
Ezinye izinambuzane, njenge-aphid, i-mealybugs, nezinambuzane ze-scale, azidluli esigabeni sokukhula. Lezi zinambuzane zizalana ngokobulili, futhi amaphuphu azo akhula abe amadala, ngaphandle kokudlula esigabeni seqanda, isibungu, noma isiphungumangathi. Le nqubo yaziwa ngokuthi i-parthenogenesis, futhi ingenye indlela yokuzalana ngokocansi.
Izinambuzane Ezibhekana Ne-Metamorphosis Engaphelele
Izinambuzane ezibhekana nokushintshashintsha okungaphelele, njengezintethe, onyendle, namaphela, azingeni esigabeni sokukhula. Esikhundleni salokho, zikhula zisuka ku-nymph zibe umuntu omdala. Lezi zinambuzane zivame ukubhekana nama-molts amaningana, zichithe ama-exoskeleton azo njengoba zikhula.
Ama-Amphibians Athola Ukuthuthukiswa Okuqondile
Ezinye izilwane ezihlala emanzini, njengama-salamanders, zithuthuka ngokuqondile, lapho zeqa isigaba sokukhula kwezibungu. Lezi zilwane ezihlala emanzini zikhula zibe abantu abadala ngokuqondile zisuka emaqandeni, ngaphandle kokudlula ezigabeni zezibungu noma ze-pupal.
Izinhlanzi Ezikhula Ngokuqhubekayo
Izinhlanzi eziningi zikhula ngokuqhubekayo, lapho zikhula kukho konke ukuphila kwazo. Ngokungafani nezinye izilwane, ezishintshashintshayo ukuze zifinyelele ukuvuthwa, izinhlanzi ziyaqhubeka zikhula futhi zithuthuka kukho konke ukuphila kwazo.
Izilwane Ezihuquzelayo Ezikhula Kalula
Izilwane ezihuquzelayo eziningi zikhula kalula, lapho zikhula ngokuqhubekayo kukho konke ukuphila kwazo, ngaphandle kokushintshashintsha. Ngokungafani nezinye izilwane, ezishintsha kakhulu ekubukekeni kwazo ngesikhathi sokukhula, izilwane ezihuquzelayo zigcina ukubonakala okufanayo kukho konke ukuphila kwazo.
Izilwane ezincelisayo ezithola ukuthuthukiswa okuqondile
Njengezinye izilwane ezihlala emanzini nasemanzini, izinhlobo ezithile zezilwane ezincelisayo zikhula ngokuqondile, lapho zeqa izigaba zokukhula kwamaqanda nezibungu. Lezi zilwane ezincelisayo zikhula ngokuqondile emibungu esibelethweni sikanina, futhi zizalwa seziphelele. Izibonelo zalezi zilwane ezincelisayo zihlanganisa abantu, izinja namakati.