2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Cov ntses muaj yeeb yuj (Paracheirodon innesi) ua iridescence los ntawm lub teeb bouncing tawm pawg ntawm guanine platelets hauv nws cov nplai. Los ntawm tilting cov platelets, cov ntses tuaj yeem hloov qhov sib nrug ntawm lawv thiab lub wavelength ntawm lub teeb uas lawv xav txog.
Puas yog ntses nplais iridescent?
Cov kws tshawb fawb tau tshawb pom tias dab tsi cuam tshuam iridescence rau tis ntawm kab thiab nplai ntses. … Cov chaw no muaj kev cuam tshuam lub teeb ntau dua li ntau tus neeg tsim cov qauv, tsim cov xim hlau iridescence lossis dazzling nyiaj ci uas peb pom hauv lub ntiaj teb ntuj tsim.
Dab tsi ua rau ntses nplai ci ci?
Ntau yam khoom zoo nkauj hauv khw niaj hnub no muaj cov nyhuv pearly iridescent ua tsaug rau molecule hu ua guanine. Qhov no yog qhov sib xyaw ua ke uas ntses ib txwm loj hlob ntawm lawv daim tawv nqaij hauv daim ntawv ntawm cov pob zeb me me thiab qhov ntawd, ua ke nrog cytoplasm, tsim cov yam ntxwv ntawm cov xim hlau ntawm cov tsiaj no.
Puas yog ntses nplais hlau?
Nyob rau hauv txoj kev tshawb fawb tshiab, Lia Addadi thiab cov npoj yaig tau sau tseg tias cov kws tshawb fawb tau paub ntau xyoo tias guanine crystals hauv daim tawv nqaij hauv qab cov nplai ntawm cov ntses cuam tshuam lub teeb los tsim cov iav zoo li lub ntsej muag. …
Dab tsi ua rau ntses nplai?
Ntses nplai yog ib feem ntawm cov ntses qhov kev sib koom ua ke, thiab yogtsim los ntawm txheej mesoderm ntawm dermis, uas txawv lawv ntawm cov tsiaj reptiles. … Cov placoid nplais ntawm cov ntses cartilaginous tseem hu ua dermal denticles thiab yog structurallyhomologous nrog vertebrate hniav.
Pom zoo:
Puas tau ntses ntses ntses ib txwm muaj luag nyav?
Yuav tau yuav luag 40 xyoo ua ntej tus Goldfish cracker luag nyav. Xyoo 1997, Goldfish tau hloov pauv thawj zaug rau nws lub cim cracker hauv keeb kwm ntawm nws lub neej. Lawv muab lub ntsej muag rau ntses. Tam sim no peb tau siv goldfish crackers ntsia thiab luag ntxhi rov qab rau peb (ua ntej peb nqis los ntawm tes, tau kawg).
Puas yog ntses ntses ntse dua ntses ntses?
Octopuses manipulate objects zoo dua dolphins ua. Lub octopus muaj lub hlwb loj tshaj plaws ntawm txhua tus invertebrate, thiab ib qho ntawm peb feem tsib ntawm nws cov neurons nyob hauv nws cov tentacles. Raws li ntses taub ntswg ntev tsis muaj caj npab, qhov no yeej ua rau octopuses ib ceg loj.
Puas cov pa luam yeeb xim xim pleev xim rau khaub ncaws?
Puas muaj pa taws tawg? Yog, lawv tuaj yeem. … Tom qab teeb lub foob pob hluav taws, yog tias koj nyob deb 2-3 feet thiab tsuas yog sawv hauv huab cua xwb, nws yuav tsum tsis txhob nkim koj cov khaub ncaws lossis ib yam dab tsi rau qhov ntawd.
Vim li cas kuv cov ntiv taw tsis muaj xim?
Ua rau Nail Discoloration av, kev tu cev tsis zoo, thiab nyob hauv qhov chaw ntub dej yog txhua yam ua rau muaj kab mob fungal hauv koj cov ntiv taw. Cov kab mob fungal tuaj yeem ua rau tsis muaj xim, ua rau koj cov ntsia hlau tshwm ib yam ntawm cov xim no:
Koj puas tuaj yeem pleev xim pleev xim rau ntawm daim ntaub tsis muaj xim?
Unprimed canvas yuav tsum tau pleev xim ua ntej yuav pleev ximrau vim cov roj hauv cov xim roj yuav nws thiaj li rot cov canvas fibers tam sim ntawd. Yog li cov xim thiab cov ntaub yuav tsum tau muab sib cais los ntawm qhov loj me thiab primer yog tias koj xav kom koj cov tha xim mus ntev.
