2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
qib Taxonomic: phylum Nematoda; Qib ntawm kev tsim kho: cov khoom nruab nrog cev tau los ntawm peb cov ntaub so ntswg; symmetry: ob tog; hom plab: tiav; hom kab noj hniav ntawm lub cev uas tsis yog lub plab: pseudocoel; segmentation: absent; circulatory system: tam sim no; paj hlwb: pob paj me me (ganglia), ob lub paj hlwb; excretion: …
Puas nematodes segmented?
Hais txog morphology, nematodes yog feem ntau tsis yog ntunrog cylindrical cross-section nrog feem ntau ntawm lawv yog microscopic (tsawg dua ib millimeter ntev). Feem ntau ntawm cov tsiaj kuj muaj ib qho kev noj zaub mov ua tiav thiab lub paj hlwb tsim tau zoo uas tswj cov leeg ntawm tes.
Yuav ua li cas segmentation ua nematodes muaj?
Nyob zoo ib tsoom phooj ywg sawv daws, cov nematodes yog
bilaterally symmetrical. Lawv muab lawv lub npe los ntawm lawv lub cev puag ncig-seem. Tsis zoo li cov kab mob flatworms uas cov zaub mov thiab pov tseg nkag thiab tawm los ntawm tib qhov qhib, nematodes muaj lub plab zom mov tag.
Yog nematodes tsis-segmented?
Nematodes (roundworms) yog tsis-segmented worms (helminths) nrog elongate cylindrical lub cev. … Ascaris, Trichuris, thiab hookworms feem ntau ua ke ua ke raws li cov av kis tau tus mob helminths (STHs) vim muaj ib feem ntawm lawv lub neej voj voog.
Puas yog nematodes segmented lossis unsegmented voj voog ib?
Nematodes feem ntau yog spindle zoo li tus, bilaterallysymmetrical, unsegmented worms. Tsis muaj cilia lossis flagella, txawm hais tias qhov zoo li tsis yog-motile cilia tshwm sim hauv lub cev. Tsis muaj kab mob ua pa los yog cov kab mob hauv lub cev.
Pom zoo:
Puas tau muv muaj segmented lub cev?
Zoo li txhua kab, cov zib muv yog tsim los ntawm peb ntu loj: lub taub hau, lub hauv siab, thiab lub plab. … Cov muv zib mu yog segmented nyob rau hauv yuav luag tag nrho lawv lub cev qhov chaw: peb ntu ntawm lub thorax, rau pom lub plab (qhov peb yog hloov kho rau hauv sting, ob txhais ceg thiab kav hlau txais xov kuj segmented.
Puas yog lub cev tiv thaiv kab mob hauv lub cev puas tsim cov tshuaj tiv thaiv?
Lub cev tiv thaiv kab mob tau txais, nrog kev pab los ntawm lub cev hauv lub cev, tsim cov hlwb (tshuaj tiv thaiv kab mob) los tiv thaiv koj lub cev los ntawm ib tus neeg invader tshwj xeeb. Cov tshuaj tiv thaiv no yog tsim los ntawm cov hlwb hu ua B lymphocytes tom qab lub cev tau raug rau cov neeg ua phem.
Puas yog tsev neeg muaj koob muaj npe muaj lub cev tiv thaiv?
Tsis tas li ntawd, Tus Saib Xyuas tau tshaj tawm tias Royal Protection Squad, cov tub ceev xwm tseem ceeb tau them nyiaj tiv thaiv tus poj huab tais, kuj tseem ua haujlwm tiv thaiv "cov qub txeeg qub teg tam sim ntawd," uas yuav suav nrog Prince Charles, Prince William thiab Prince George.
Puas segmented worms muaj qaum?
Cov tsiaj uas feem ntau hu ua worms yog invertebrates. Qhov no txhais tau tias lawv tsis muaj nraub qaum. Yog segmented worms invertebrates lossis vertebrates? Annelid, phylum lub npe Annelida, tseem hu ua segmented worm, txhua tus tswv cuab ntawmphylum ntawm cov tsiaj tsis muaj pob txha uas yog tus cwj pwm los ntawm kev muaj lub cev kab noj hniav (los yog coelom), txav tau.
Puas muaj segmented genome?
GENOME ntawm tus kab mob tau muab faib ua ntu, txhua tus uas encodes ib lossis ntau dua ORFs. Segmented genomes feem ntau pom nyob rau hauv RNA viruses. Ib segmented genome pab txhawb kev genetic re-assortment ntawm cov kab mob sib txawv, thaum muaj nyob rau hauv tib lub cell, muab ib qhov chaw ntawm variation rau tus kab mob.
