AmaMollusks

-Delile

• Izinhlobo zama-mollusks
• I-Morphology
• Ukondla
• Indawo yokuhlala
• Izibonelo zama-mollusks

Ama-mollusks yizilwane ezingenamgogodla ezibonakala ngokuba nomzimba othambile onyawo lwemisipha embozwe yisikhubekiso segobolondo noma igobolondo. Imvamisa kuyizilwane zasemanzini.

Izinhlobo zama-mollusks

Kunezigaba ezintathu ezihlukene noma izinhlobo zama-mollusks:

• Ama-gastropods. Iminenke nama-slugs. Cishe ama-mollusk angama-80% akuleli klasi.
• Ama-cephalopods. I-Octopus, squid kanye ne-cuttlefish. Iqembu elincane kakhulu kepha liguquke kakhulu.
• Ama-Vivalves. Kuleli qembu kunezimbaza, izimbaza nezimbaza. Isici saleli qembu elincane ukuthi yibo bodwa kulawa ma-subtypes amathathu angenayo i-radula. Izimbaza, izimbaza kanye nama-oysters. Babodwa abangenayo i-radula.

I-Morphology

• Uhlelo lokuphefumula. Iningi lama-mollusks liphefumula ngemithambo, yize ezinye izinhlobo zenze uhlelo lokuphefumula lwamaphaphu.
• Uhlelo lokugaya ukudla. AmaMollusks adla ngomzimba obizwa ngokuthi i-radula elimise okolimi. Ebizwa nangokuthi ingubo, lesi sitho sihlanganisa isisindo se-visceral futhi kwezinye izinhlobo sikhipha i-calcium carbonate ukuze yakhe igobolondo.
• Uhlelo lokujikeleza kwegazi. Banenhliziyo, i-aorta, nemithambo yegazi.
• Uhlelo lokuzala. AmaMollusk ama-oviparous, okungukuthi, azala ngokubeka amaqanda ngabesifazane. Ukuziphatha kwabo kuyedwa, akuvamile ukubabona ngamaqembu, ngaphandle kwalapho behlangana. Ama-mollusk amaningi angama-hermaphrodites.

Ukondla

Uhlobo lokondliwa kwama-mollusk luyehluka kuye ngohlobo ngalunye. Ngokuvamile, ama-mollusk omhlaba ayizilwane ezidla imifino, kanti ama-mollusk asemanzini ayizilwane ezidla inyama, yize abuye adle ukudla kwawo nge-plankton ne-algae.

Indawo yokuhlala

Maqondana nendawo ezihlala kuyo, ama-mollusk angaphila ngaphansi kwamanzi, ngaphansi kolwandle (akha ama-23% azo zonke izilwane zasolwandle nezamanzi ahlanzekile), kodwa futhi angajwayela futhi aphile amamitha ayi-3 000 ngaphezu kogu lolwandle emhlabeni.

Izibonelo zama-mollusks