Kab vs Arachnids
Arthropods muaj ob peb chav kawm, tab sis kab thiab arachnids yog ob chav kawm tseem ceeb tshaj plaws hauv phylum. Tag nrho cov arthropods muaj qhov txawv ntawm lwm cov tsiaj, tab sis cov tswv cuab ntawm ob chav kawm no tau nthuav tawm cov physiognomies tshwj xeeb thiab cov no zoo txaus los txheeb xyuas kab los ntawm arachnids. Lawv txawv nyob rau hauv lawv taxonomic ntau haiv neeg, morphological nta, thiab nyob rau hauv ntau lwm yam.
kab
Kab yog cov tsiaj loj tshaj plaws uas xav tau ntau hom ntawm rau txog rau kaum lab. Txog tam sim no, muaj txog 1, 000, 000 piav hom kab. Kab tuaj yeem txhawb nqa nyob rau hauv yuav luag tag nrho cov ecosystems vim lawv qhov kev hloov pauv loj heev. Qhov no ntau dua cov kab kab hauv ntiaj teb txhawb nqa lawv qhov tseem ceeb. Qee cov kab ntau heev yog npauj npaim, ntsaum, muv, weevils, paddy kab, crickets, grasshoppers, nplooj kab, yoov tshaj cum thiab lwm yam.
Kab muaj peb ntu tshwj xeeb hauv lub cev hu ua tagma, suav nrog lub taub hau, thorax, thiab plab. Yeej, lub taub hau yog tsim los rau kev pub noj thiab kev hnov mob, thorax tsuas yog rau kev txav chaw, thiab lub plab ua haujlwm tsuas yog rau kev yug me nyuam. Muaj peb khub ob txhais ceg los ntawm lub thorax. Lub taub hau muaj ob lub qhov muag sib xyaw thiab ob lub kav hlau txais xov rau kev ua haujlwm zoo. Nyob rau hauv lub plab mog, lub qhov quav qhib lub oviduct thiab lub qhov quav mus rau sab nrauv (piv txwv li lawv tsuas muaj ib qho qhib rau defecation thiab reproduction). Ib yam li ntawd, pawg tsiaj uas muaj kev vam meej no suav tias yog qhov ua tau zoo tshaj plaws hauv lub Nceeg Vaj: Animalia.
Arachnids
Arachnids yog ib pawg ntawm arthropods nrog rau kab laug sab, kab laug sab, zuam, sau qoob, scorpions thiab lwm yam. Muaj ntau tshaj li 10,000 yam piav qhia ntawm arachnids, thiab yuav luag tag nrho lawv yog cov av. Qhov zoo tshaj plaws thiab sawv tawm ntawm cov arachnids yog qhov muaj plaub khub ntawm ceg (yim ceg). Txawm li cas los xij, qee qhov ntawm cov ceg no tau dhau los ua qhov hnov qab hauv qee hom arachnid. Ntxiv nrog rau lawv ob txhais ceg, arachnids muaj ob qhov tshwj xeeb appendages uas ua zoo li caj npab nrog txiav thiab pub muaj peev xwm. Qhov tseeb, cov kab mob loj no yog cov chelicerae, uas yog siv ntxiv rau kev pub mis thiab tiv thaiv. Lub xub ntiag ntawm pedipalps yog lwm qhov tseem ceeb ntawm arachnids, uas yog qhov tseem ceeb hauv kev ua haujlwm thiab kev yug me nyuam.
Lub koom haum lub cev ntawm arachnids yog tsim los ntawm cephalothorax thiab plab, aka prosoma thiab opisthosoma. Arachnids yog wingless creatures, tsis zoo li feem ntau ntawm cov arthropods. Qhov tsis muaj antennae tuaj yeem siv los ua lwm qhov txawv ntawm lawv. Ib qho tseem ceeb tshaj plaws physiological yam ntxwv ntawm arachnids yog tsis muaj extensor nqaij; Hloov chaw, lawv muaj lub zog hydraulic kom ntev lawv ob txhais ceg nrog elastic thickenings ntawm koom nrog, xws li kab laug sab thiab scorpions. Lawv muaj ib qho kev sib pauv roj tshwj xeeb uas tau hloov kho los ntawm phau ntawv ntsws. Lawv pub mis yog carnivorous feem ntau. Lawv cov plaub hau hnov tsw thiab trichobothria yog cov qauv kev xav ntxiv rau lub qhov muag thiab ocelli. Nrog rau lub xub ntiag ntawm fertilization rau kev yug me nyuam, arachnids tuaj yeem suav hais tias yog ib pawg tsiaj tsim tau zoo.
Dab tsi yog qhov txawv ntawm Kab thiab Arachnids?
• Kab muaj ntau haiv neeg ntau dua lab hom dua li cov arachnids uas tsuas muaj 10,000 hom.
• Kab muaj rau ob txhais ceg, tab sis muaj yim khub ob txhais ceg hauv arachnids.
• Kab muaj tis tsawg kawg nyob rau theem ntawm lawv lub neej, tab sis arachnids yeej ib txwm muaj tis tsis muaj tsiaj.
• Kab muaj nyob hauv yuav luag txhua qhov chaw nyob, hos arachnids feem ntau nyiam qhov chaw nyob hauv av.
• Chelicerae nthuav dav hauv arachnids ntau dua li kab.
• Gas exchange system yog hloov zuj zus los ntawm phau ntawv ntsws hauv arachnids tab sis tsis nyob rau hauv kab.
• Arachnids qhia fertilization sab hauv tab sis tsis tshua muaj los yog tsis nyob rau hauv kab.
• Kab muaj cov leeg extensor tab sis tsis nyob hauv arachnids.
• Kab muaj antennae tab sis tsis nyob hauv arachnids.
• Arachnids feem ntau yog carnivorous, tab sis kab tuaj yeem yog carnivorous, omnivorous, lossis herbivorous.
