Protonephridia muaj nyob hauv Platyhelminthes Platyhelminthes Cov Neeg Laus muaj nyob nruab nrab ntawm 0.2 hli (0.0079 hauv) thiab 6 hli (0.24 hauv) ntev. Ib tug neeg laus digeneans yog ib tug poj niam txiv neej, thiab nyob rau hauv ib co hom slender poj niam nyob rau hauv ib tug kaw grooves uas khiav raws lub cev ntawm cov txiv neej, ib feem tawm mus nteg qe. https://en.wikipedia.org › wiki › Flatworm
Flatworm - Wikipedia
thiab metanephridia metanephridia Ib tug protonephridium (proto="thawj") yog a network ntawm cov tubules tuag tsis muaj qhov qhib sab hauv, pom nyob rau hauv phyla Platyhelminthes, Nemertea, Rotifera thiab Chordata (Lancelets). … Protonephridia feem ntau pom muaj nyob rau hauv cov kab mob basal xws li flatworms. https://en.wikipedia.org › wiki › Nephridium
Nephridium - Wikipedia
hauv Annelids thiab Arthropoda. - Nws yog hais txog cov tubular, excretory lug nyob rau hauv cov invertebrates tshwj xeeb, feem ntau kaw nyob rau hauv cov hluav taws kub hlwb thiab muaj ib tug sab nraud pore.
Qhov twg annelid muaj Protonephridia?
Qee yam meiofaunal annelids, tshwj xeeb tshaj yog myzostomids thiab qee yam phyllodo- cidan annelids, suav nrog txhua hom Phyllodocidae, Nephthyidae, Glyceridae, thiab Gonadiidae, muaj segmental protonephridia hloov metanene-segmental. phridia ua. …
Cov kab mob dab tsi muaj Protonephridia?
Protonephridia feem ntau pom muaj nyob hauv cov kab mob hauv nruab nrab xws li flatworms. Protonephridia tej zaum yuav tshwm sim thawj zaug raws li txoj hauv kev los tiv thaiv ib puag ncig hypotonic los ntawm kev tshem tawm cov dej ntau dhau ntawm lub cev (osmoregulation). Lawv siv raws li excretory thiab ionoregulatory qauv yuav tshwm sim thib ob.
Puas Planaria muaj Protonephridia?
Planarian excretory system yog tsim los ntawm protonephridia, uas yog cov kab mob uas tau muab faib thoob plaws hauv lub cev.
Protonephridia thiab metanephridia yog dab tsi?
Protonephridia yog ua los ntawm ciliated lossis flagellated nplaim hluav tawsuas pab hauv kev tso cov kua dej pov tseg ntawm nephridiopore. Metanephridia yog tsim los ntawm funnel-zoo li cov qauv hu ua nephrostome nrog rau sab hauv qhib uas sau cov dej khib nyiab los ntawm lub cev kab noj hniav.
