Izilwane eziphefumula i-Gill

-Delile

• Izinhlobo zamagill
• Izibonelo zezilwane eziphefumula ngezigilo

I- ukuphefumula Kuyinqubo izinto eziphilayo ezithola ngayo umoya-mpilo. Lokhu kuphefumula kungaba ngamaphaphu, i-branchial, i-tracheal noma i-cutaneous.

Izilwane eziphefumula ngemithambo yizilwane zasemanzini zamanzi ahlanzekile nasawoti, phakathi kwazo kunezinhlobo eziningana zama-crustaceans, izibungu, ama-amphibians, ama-mollusks nazo zonke izinhlanzi. Ngokwesibonelo: ushaka, inkalankala, ingwane.

Ukuphefumula kwe-Gill kwenziwa ngama-gill noma ama-gill, okuyizitho zokuphefumula ezihlunga umoya-mpilo emanzini ziye egazini nasezicutshini. Lo moya-mpilo ubalulekile ekuphefumuleni kwamaselula. Amagill ahlunga umoya-mpilo futhi akhiphele isikhutha emvelweni.

Izinhlobo zamagill

Amagill yizicubu ezakhiwa amashidi amancane noma imicu emincane enemithambo yegazi eguqulwe ukuhamba njalo kwezilwane endaweni yazo yasemanzini. Imvamisa zitholakala engxenyeni engenhla yomzimba wesilwane futhi zingaba ngaphandle noma ngaphakathi.

• Izigilo zangaphandle. Zenzeka ezilwaneni ezingenamgogodla noma ekuqaleni kokuvela kwezinye izilwane. Yizakhiwo zakudala futhi ezilula ezixhumana ngqo nemvelo. Lokhu kunezinkinga eziningi, njengoba zingalimala kalula futhi zenze ukuqina kube nzima. Ngokwesibonelo: i-urchin yasolwandle kanye nezibungu zezinhlobo ezithile zasemanzini zinezifo zangaphandle.
• Ama-gill angaphakathi. Zenzeka ezilwaneni ezinkulu zasemanzini. Zivikeleke kancane emigodini ebanika ukuvikelwa. Ngokwesibonelo: i-bony fish (i-tuna, i-cod, i-mackerel) ine-operculum (fin evikela ama-gill).

Izibonelo zezilwane eziphefumula ngezigilo

• Qhubeka nalokhu: Izilwane ezinokuphefumula kwetreacheal