Spicules yog cov qauv me me ntawm cov khoom siv tawv tawv nrog cov duab zoo heev tshwj xeeb rau ntau hom sponge. Lawv yog ib feem ntawm cov pob txha uas pab muab daim txhuam cev nws cov duab.
spicules pom nyob qhov twg?
Spicules yog cov qauv tsim muaj nyob hauv feem ntau daim txhuam cev. Daim txhuam cev spicules yog ua los ntawm calcium carbonate los yog silica. Cov spicules loj uas pom ntawm qhov muag liab qab yog hu ua megascleres, thaum me me, cov kab mob me me yog hu ua microscleres.
Dab tsi yog Spicule hauv daim txhuam cev?
Spicules yog cov khoom tsim ntawm daim txhuam cev, lossis "cib," thiab cov duab, qhov ntau thiab tsawg, thiab muaj pes tsawg leeg yog tshwj xeeb rau txhua hom. … Spicules yog tsim los ntawm Calcium los yog Silica.
Puas pom muaj nyob hauv porifera?
Ntau daim sponges muaj cov pob txha pob txha sab hauv ntawm spongin thiab / lossis spicules ntawm calcium carbonate lossis silica Feem ntau, lawv lub cev muaj cov ntawv nyias nyias ntawm ib lub thav duab (skeleton). Raws li lawv lub npe qhia, Poriferans yog tus yam ntxwv los ntawm lub xub ntiag ntawm feeb pores hu ua ostia ntawm lawv lub cev.
Dab tsi txheej ntawm daim txhuam cev lub cev tsim cov spicules?
Raws li peb tau pom, feem ntau cov sponges tau txais kev txhawb nqa los ntawm cov pob txha zoo li cov pob txha me me (feem ntau cov qauv taw qhia me me ua los ntawm calcium carbonate lossis silica) hauv the mesohyl. Spicules muab kev txhawb nqa rau lub cev ntawm daim txhuam cev, thiab tseem tuaj yeem tiv thaiv kev ua phem.
