Imibala: isakhiwo nencazelo izingxenye

Le mbali kuyinto Ushintshe amahlumela esifushane, okuyinto ingashintshwa ukuze yakha ezinhlamvu, le gametes (ubulili amaseli) futhi uMhloli Wemiqulu. Ngemva kwale nqubo ithela izithelo nezithelo. Izimbali, isakhiwo okuyinto lilula eziphilayo into ethakazelisa kakhulu yokutadisha.

izici kwesakhiwo

Kusukela umbono ka izindlela ezintsha zesayensi zokufunda, isitshalo ngasinye - kuyinto uhlelo okukhona ngemithetho yayo. Izimbali kufanele isakhiwo elandelayo. Stem wabo - nhlanganisela pedicel kanye ayesisebenzisa lapho amaqabunga (basuke ngokwesayensi ngokuthi tsvetolistiki). Ngu tsvetolistikam kukhona sepals, stamens futhi pistils futhi amacembe. Ngokuvamile, lezi zakhi zegazi ahlelwe sizungeze inkaba imigqa eziningana. Uma isitshalo has kokubili stamens futhi pistils, bebizwa ngithanda abesilisa nabesifazane, noma hermaphrodite. Singabantu dioecious noma stamens (kulesi simo, amadoda imbali) noma pistils (ukhuluma ngani Abesifazane iMovement).

Perianth - lena enye ingxenye ukuthi babe izimbali. Isakhiwo kuwukuthi uba uhlobo umvikeli futhi isitshalo main edonsela ezithutha impova. Perianth kungaba imibala ehlukene (kulesi simo kuba kabili), futhi kungenziwa zaveza umbala owodwa kuphela - kulesi simo sikhuluma ezihlukahlukene elula. Stamen, okuyinto ingxenye leduna isitshalo kuhlanganisa intambo staminal futhi anther. Enhliziyweni imbali iyona pistil (okuyinto, by the way, kungase kube eziningana). It siqukethe le esibelethweni, isitayela kanye nenhlamba. Izici isakhiwo imbali yokuthi inhlamba abathintekayo ekwabiweni uketshezi okunamathelayo ngawo abanjwe futhi yagcinwa impova okusanhlamvu. Ngakho, ngamunye siqukethe imbali:

• pestle;
• stamens;
• Corolla;
• amacembe;
• epicalyx;
• ayesisebenzisa;
• ISIZINDA;
• lusalanda;
• pedicels.

Izimbali, ogama isakhiwo mogzhet kuhluke, iyashiyana ngesikhathi ngetincenye, indawo yabo futhi ukuma. Ngokwesibonelo, otshala nge stamens futhi pistil ngesikhathi esifanayo abizwa ngokuthi ngithanda abesilisa nabesifazane. Uma kukhona noma stamen noma pistil, imbali ngokwesayensi ukubizwa ngokuthi izitabane. Lesi sitshalo kungase kuhilele izimbali eziningana, okuyinto lubuthwe inflorescence, futhi kungenzeka ukuthi owodwa. Yiqiniso, uma kuzoba inflorescences ngokushesha impova, kuyilapho izimbali kancane kabana umthelela izici zendawo ezimbi. Inflorescence yena, kungabuye ezimbili zama: elula (imbali isendaweni main-eksisi) noma eziyinkimbinkimbi (ezihilela eziningana oda izimbali).

Biology imbali isakhiwo inquma apharathasi kanjani eziyinkimbinkimbi, okuhlanganisa zonke izingxenye zalo ngesikhathi esisodwa. Ngokwesibonelo, lapho impova avuthiwe, anthers aqale wavele, okubangela impova ukuze inhlamba of the pistil kuyinto. Kulapha impova. By the way, kungase kwenzeke ukweqa lowo kwenzeka kaningi kakhulu, kodwa ngezinye izikhathi kuyenzeka futhi selfing. I engavamile we ndlela engu- ukuthi impova eyalo umoya, amanzi, izinambuzane, izinyoni nokunye.