Sponges subsist on macroscopic detritus material, tab sis kuj haus cov khoom ntawm tes, cov kab mob, thiab cov khoom tsis muaj sia me me uas lawv tsis tuaj yeem daws nrog lub teeb pom kev zoo.
khob sponges noj dab tsi?
Feem ntau cov iav sponges nyob txuas rau qhov chaw tawv thiab haus cov kab mob me me thiab plankton uas lawv lim los ntawm cov dej nyob ib puag ncig. Lawv cov pob txha tsis sib xws muab ntau yam tsiaj nrog ib lub tsev.
Hexactinellida yog dab tsi?
Deepwater marine sponges nrog lub khob pob txha, thiab feem ntau yog rau rays; txawv txawv vim lawv ntau cov ntaub so ntswg thiab muaj peev xwm ua hluav taws xob teeb liab thaum tsis muaj qab haus huv.
Tus yam ntxwv ntawm Hexactinellida yog dab tsi?
Hexactinellida yog tus cwj pwm los ntawm siliceous hexactine (rau-taw tes) spicules, ua rau lawv yog chav kawm thib ob hauv pab pawg loj ntawm Silicea. Lawv kuj tsim ob lub cev sib txawv: sycon thiab leucon.
Hexactinellida yog dab tsi?
iav daim txhuam cev, ib qho ntawm cov chav kawm (Hexactinellida, tseem hu ua Hyalospongiae, los yog Triaxonia) ntawm daim txhuam cev uas muaj cov pob txha uas muaj silica spicules (needlelike structures) feem ntau koom ua ke rau hauv ib qho chaw geometric zoo-xws li, ntawm Venus's. paj pob tawb (q.v.).
