Reproduction. Bithynia tentaculata yog kev sib deev, dioeccious snail nrog lub neej ntev txog plaub xyoos, nyob ntawm thaj tsam (Wächtler 2001). Cov khoom ntawm kev sib deev no yog qe nteg nyob rau hauv kab (pom hauv daim duab saum toj no), nrog cov pob tshab thiab cov ntaub so ntswg daj.
Ctenophores yuav ua li cas?
Reproduction In Comb Jellyfish
Txhua ctenophora yog hermaphroditic - txhais tau tias lawv muaj ob qho tib si txiv neej thiab poj niam cev xeeb tub. Ob peb hom muaj peev xwm reproduce asexually Qe thiab phev tau los rau hauv dej thiab tom qab fertilization ib ovoid larvae tsim, hu ua Cydippid larvae.
Yuav ua li cas comb jellies reproduce?
Comb Jellies
Feem ntau yog hermaphrodites, nrog rau cov tib neeg nqa ob leeg txiv neej thiab poj niam cev nqaij daim tawv. Tom qab lawv loj hlob mus rau ib qho loj, lawv tso qe thiab phev txhua hnub, uas ntws hauv dej rau feeb mus rau teev kom txog thaum lawv muaj peev xwm fertilize thiab loj hlob mus rau hauv cov zuag tshiab.
Puas comb jelly tseem muaj nyob?
Txawm tias yuav ploj mus dhau 400 lab xyoo dhau los, ncient comb jellies tseem ua rau cov kws tshawb fawb tawm mus. … Niaj hnub nimno comb jellies - hu ua "ctenophores," raws li lawv lub npe scientific - twb zoo nkauj weird saib.
Koj tuaj yeem kov lub comb jelly?
Tsis zoo li jellyfish, comb jellies tsis sting. Hloov chaw, lawv siv cov nplaum nplaum-colloblasts-kom ntes lawv cov tsiaj. Txij li thaum lawv tsis muaj cov kab mob stinging, lawv tuaj yeem kov tau nyab xeeb. Qhov tseeb, koj tuaj yeem ua luam dej nrog lawv!
