2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Kev Tshawb Fawb ntawm Diatom. Diatoms tau pom thawj zaug hauv 1703 los ntawm tus neeg tsis paub lus Askiv, luam tawm los ntawm Royal Society of London hauv Kev Tshawb Fawb Txog Kev Lag Luam..
Leej twg nrhiav tau diatom?
Nyob rau xyoo pua nees nkaum xyoo pua fossil diatoms tau kawm thawj zaug thiab, nto moo tshaj plaws, Hustedt (1927-66) tau tsim kev tshawb fawb txog kev tshawb fawb thiab kev coj noj coj ua ntawm diatoms uas tseem yog ib qho tseem ceeb siv niaj hnub no..
Thaum twg diatom tshwm sim thawj zaug?
Cov diatoms thawj zaug tshwm sim hauv cov ntaub ntawv fossil hauv lub Cretaceous thaum ntxov (kwv yees 120 Mya) raws li cov ntaub ntawv centric hauv neritic marine deposits (Gersonde & Harwood, 1990; D. G. Mann, kev sib txuas lus tus kheej).
hom diatoms pom nyob qhov twg?
Diatoms muaj nyob hauv tag nrho cov chaw nyob hauv dej ntshiab, suav nrog cov dej sawv ntsug thiab ntws, thiab cov chaw nyob planktonic thiab benthic, thiab feem ntau lawv tuaj yeem ua tus thawj ntawm microscopic flora.
Koj puas tseem muaj diatoms?
Diatoms pom ze txhua qhov chaw muaj dej. Marine diatoms ntawm hiav txwv thiab dej hiav txwv yog txawv ntawm cov dej tshiab diatoms ntawm pas dej thiab dej.
Pom zoo:
Thaum twg dystrophic epidermolysis bullosa nrhiav tau?
Epidermolysis bullosa tau pom thawj zaug hauv lig 1800s. Nws yog ib tug tswv cuab ntawm tsev neeg ntawm cov kab mob hu ua blistering disease. Puas yog dystrophic epidermolysis bullosa ib yam kab mob tsawg? Epidermolysis bullosa acquisita (ib daim ntawv tau txais ntawm EB) yog ib yam tsis tshua muaj autoimmune tsis meej thiab tsis tau txais txiaj ntsig.
Diatoms tau zaub mov li cas?
Lawv tau txais zaub mov los ntawm kev nqus cov as-ham los ntawm dej hiav txwv, uas yog txheej txheem sib tw heev. Diatoms kuj loj thiab muaj qhov tsis zoo rau kev nqus zaub mov vim lawv lub cev qhov chaw txo qis. diatoms thiab algae tau txais lawv cov zaub mov li cas?
Leej twg noj diatoms?
Khoom noj. Hauv dej hiav txwv, diatoms tau noj los ntawm tsiaj me hu ua zooplankton. Zooplankton nyob rau hauv lem txhawb nqa cov kab mob loj dua, zoo li ntses, ntau cov tsiaj hauv dej hiav txwv nyob ntawm diatoms ncaj qha lossis tsis ncaj rau lawv txoj sia.
Thaum twg tau txais kev pom zoo nrhiav tau?
In 2009, peb tus tsim thiab CEO Steve Marshall tau txheeb xyuas lub sijhawm hauv kev lag luam pov hwm lub neej thiab Reassured tau tsim. Peb pab tsev neeg tiv thaiv qhov tseem ceeb tshaj plaws rau lawv; Peb Lub Hom Phiaj rau 2020 yog los tiv thaiv ntau dua 200,000 tsev neeg hauv tebchaws Askiv.
Puas nrhiav tau lossis nrhiav tau?
Yog li, koj yuav tsum tau siv "could find". Lub modal verb, tau yog twb nyob rau hauv nws paste-form: ua. Yog li koj tsis tas yuav hloov pauv los nrhiav. Yuav nrhiav tau lossis nrhiav tau? "Ntaus" yog sib npaug. "
