2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Jellyfish muaj lub cev mos zoo li no, nws tsis tshua muaj uas lawv ua fossilized. Nws sau cov qauv cog ob qho tib si nyob thiab fossilized. Sherman tsis tau ua raws li cov fossilized, formalized, precedent-raws li kev xav ntawm cov thawj coj tub rog yav dhau los. Raws li lub sij hawm dhau mus, tib neeg ua fossilized thiab tsis kam hloov.
Koj siv fossilized hauv kab lus li cas?
Nws yog ntses loj thiab tag nrho nws cov pob txha. Ib tug zoo-tsim stinger muaj nyob rau hauv lub fossilizedqauv. Sharks tshuav lawv cov hniav mus fossilize thaum ntxov Cretaceous. Nws cov fossilized seem tau pom ntawm cov kob ntawm Java.
Lub ntsiab lus ntawm fossilized yog dab tsi?
1: tau hloov mus ua pob txha: raug fossilization fossilized ntoo Thiab xyoo 1997 nws pom ob peb txhiab fossilized qe los ntawm ib tug loj sauropod, los yog cog-nosaur, cia li 120 mais qaum teb.
Dab tsi yog pob txha hauv ib kab lus?
Ib qho seem, kev xav, lossis kab ntawm tus tsiaj lossis cov nroj tsuag ntawm lub hnub nyoog geological yav dhau los uas tau khaws cia hauv lub ntiaj teb crust hu ua fossil. Cov ntaub ntawv los ntawm cov pob txha yog thawj qhov chaw ntawm cov ntaub ntawv hais txog keeb kwm ntawm lub neej hauv ntiaj teb.
piv txwv ntawm fossilize yog dab tsi?
Piv txwv suav nrog pob txha, plhaub, exoskeletons, pob zeb imprints ntawm tsiaj lossis microbes, cov khoom khaws cia hauv amber, plaub hau, ntoo petrified, roj, thee, thiab DNA seem. Qhov tag nrhontawm fossils yog hu ua cov ntaub ntawv fossil. … Cov qauv no feem ntau suav hais tias yog pob txha pob txha yog tias lawv muaj hnub nyoog tshaj 10,000 xyoo.
Pom zoo:
Thaum muab piv cov kab kab kab thiab cov kab ntsig flatworms qhov twg muaj tseeb?
Ib tug flatworm muaj nyias, dorsoventrally flattened lub cev. Roundworms yog ntau cylindrical hauv cov duab thiab tapered mus rau qhov zoo ntawm ib kawg. Ib yam li ntawd, cov kab mob roundworms muaj ib txheej txheej txheej hu ua cuticle uas lawv tau rov ua dua thoob plaws hauv lawv lub neej thiab thaum lawv loj hlob.
Yuav ua li cas txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau txhawm rau pom kev pom?
Txawm li cas los xij, corneal collagen cross-linking - cov txheej txheem qib siab tau pom zoo los ntawm US Food and Drug Administration (FDA) hauv xyoo 2016 - tuaj yeem txhim kho qhov pom kev hauv cov neeg mob txhua hnub nyoog. Corneal collagen cross-linking (CXL) tsis yog kho rau keratoconus, tab sis nws tuaj yeem pab tiv thaiv tus mob kom tsis txhob mob hnyav.
Cov kab kab kab kab kab ua kab mob txaus ntshai npaum li cas?
Nyob rau hauv peb thiab tom ntej instars ntawm lawv txoj kev loj hlob, Pine processionary caterpillars yog mob heev rau daim tawv nqaij ntawm tib neegthiab lwm yam tsiaj. Kev sib cuag yooj yim nrog cov plaub hau ntawm kab ntsig tuaj yeem ua rau pob khaus hnyav (urticaria) thiab khaus qhov muag, thiab qee tus neeg yuav muaj kev fab tshuaj.
Cov tshuaj kab kab mob puas yuav ua haujlwm rau cov kab mob sib kis?
Bayer Drontal Broad Spectrum Dewormer zoo tshem tawm ntau hom kab mob hauv plab nrog rau cov kab mob tapeworms, hookworms, thiab roundworms. Kuv puas tuaj yeem kho kuv tus miv rau kab kab kab kab thiab kab kab sib chaws tib lub sijhawm?
Dab tsi ntawm cov kab mob feem ntau fossilized?
Fossilization feem ntau tshwm sim hauv cov kab mob nrog tawv, pob txha hauv lub cev, xws li pob txha, hniav, lossis plhaub. Cov kab mob mos, xws li cov kab mob, tsis tshua muaj fossilized. Qee zaum, txawm li cas los xij, cov nplaum nplaum ntawm tsob ntoo tuaj yeem ua fossilized.
