Kab laug sab, zoo li feem ntau cov arthropods, muaj qhov qhib circulatory system, piv txwv li, lawv tsis muaj ntshav tiag, lossis cov hlab ntsha uas thauj nws. Hloov chaw, lawv lub cev tau ntim nrog haemolymph, uas tau tso los ntawm cov hlab ntsha los ntawm lub plawv mus rau hauv qhov chaw hu ua sinuses nyob ib puag ncig lawv cov kabmob sab hauv.
Hnub arachnid ntshav hu ua dab tsi?
kab laug sab cov ntshav, hu ua hemolymph, circulates oxygen, as-ham thiab cov tshuaj hormones rau ntau yam kabmob hauv lub cev. Tsis zoo li tib neeg, kab laug sab muaj qhov qhib circulatory system.
kab laug sab puas muaj hlwb?
Discovery tuaj yeem piav qhia me me arachnids 'web-weaving prowess, txoj kev tshawb fawb hais tias. Lawv tsis rog, lawv tsuas yog lub hlwb loj xwb: Cov kab laug sab me me muaj lub hlwb loj rau lawv lub cev qhov loj me uas cov kabmob tuaj yeem cuam tshuam rau tsiaj lub cev kab noj hniav, txoj kev tshawb fawb tshiab qhia.
Pob kab laug sab muaj ntshav hauv lawv ob txhais ceg?
Txhua yim ceg txuas rau pem hauv ntej ntawm kab laug sab, prosoma lossis cephalothorax, uas tseem nqa lub qhov muag thiab qhov ncauj. Nyob rau hauv lub prosoma muaj ib tug kua hu ua hemolymph uas yuav siv sij hawm qhov chaw ntawm ntshav. Zoo li peb cov ntshav, nws yog lub cev thauj khoom, nqa oxygen thiab cov as-ham.
Pob kab laug sab muaj ntshav hemolymph?
kab laug sab muaj ncig cov ntshav hauv lawv lub cev. Cov ntshav tsis muaj xim, hu ua hemolymph, thauj khoom noj khoom haus, cov tshuaj hormones, oxygen thiab hlwb. Cov ntshav kuj ua haujlwm rau lwm lub hom phiaj. Nws yog siv hauv zos los txhawb cov ntshav siabthaum lub sij hawm moulting (shdding ntawm daim tawv nqaij laus) thiab ncab ob txhais ceg.
