UMary Allen
Izinambuzane zizilwanyana ezincinci. Zingabakwa-arthropods. Ngoko ke zihlobene ngokusondeleyo ne-millipedes, oononkala, kunye ne-arachnids. Kukholelwa ukuba kukho malunga nesigidi seentlobo ezahlukeneyo zezinambuzane. Bahlala kulo lonke ihlabathi, kungekhona nje elwandle.
Ngokwembono yabantu, izinambuzane ezininzi ziyingozi. Umzekelo, batya izityalo ezikhuliswe kwezolimo. Okanye basasaza izifo ezinjengesifo seengcongconi. Kodwa ezinye izinambuzane zitya izinambuzane eziyingozi. Ngokomzekelo, iiladybugs zitya iintwala. Iinyosi zobusi zizinambuzane ezithi abantu bahlale befumana ubusi kuzo. Zikwabalulekile nasekusasazeni imithi yeziqhamo.
Wakhiwe njani umzimba wezinambuzane?
Umzimba wesinambuzane unamalungu amathathu, akwabizwa ngokuba ngamalungu. Embindini sisifuba, kwaye phezu kwayo kukho izibini ezintathu zemilenze. Ngoko izinambuzane zinemilenze emithandathu, ngokungafaniyo nezigcawu, ezinemilenze esibhozo. Kwicala lesifuba kukho amaphiko ezinambuzane. Amanye amalungu amabini omzimba wesi sinambuzane yintloko kunye nesisu.
Izinambuzane zinegazi. Izalisa ingxowa enkulu apho amalungu angaphakathi adadayo. Ngasemva kweli "saka legazi" kukuqhubela phambili kunye nentliziyo elula eyenza inkontileka kwaye iphumle ngesigqi. Owona mthambo ubalulekileyo yi-aorta, ekhokelela entloko ebuchotsheni. Imilenze, amaphiko, kunye nesisu nazo zinikezelwa ngegazi ngale ndlela.
Izinambuzane azinayo imiphunga. Imijelo emincinci ikhokelela ukusuka kumphezulu womzimba ukuya ngaphakathi, ebizwa ngokuba yi-tracheae. Bahluma njengamasebe omthi. Oku kungenisa ioksijini emzimbeni. Izinambuzane azikwazi ukuphefumla ngaphakathi nangaphandle. Umoya ushukunyiswa kuphela ngumoya okanye ngokuphaphazela kwamaphiko ezinye izinambuzane.
Izinambuzane zine-foregut, i-midgut, kunye ne-hindgut yokwetyisa. I-foregut ibandakanya umlomo kunye nommizo. Kwi-midgut, ukutya kuyagaywa kwaye iindawo ezisebenzisekayo zifunxwa ngumzimba. Ukutya okuseleyo kulungiswa kwi-rectum kwaye kukhutshwe njengenkunkuma.
Izinambuzane zizala ngendlela efanayo neentaka. Kwakhona banamalungu esini afana kakhulu nalawo eentaka okanye ezilwanyana ezanyisayo. Zikhwelana, emva koko imazi izalele amaqanda ayo. Iqanda liba ngumbungu. Oku ke kuba sisilwanyana esikhulileyo. Imibungu yamabhabhathane ikwabizwa ngokuba ziimopane. Uqala ajike abe “ngunodoli” apho isilwanyana esikhulileyo sityibilika khona.