Cov txheej txheem:
Video: Ichnology txhais li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ichnology yog ceg ntawm geology uas cuam tshuam nrog cov kab mob ntawm cov kab mob, xws li burrows thiab footprints. Nws yog feem ntau suav hais tias yog ib ceg ntawm paleontology; txawm li cas los xij, tsuas yog ib feem ntawm ichnology , paleochnology, deals nrog taug fossils , thaum neochnology yog txoj kev kawm txog cov kab mob niaj hnub no.
Hauv qhov no, 4 hom kab mob dab tsi yog dab tsi?
Plaub hom fossils yog:
- pwm fossils (ib qho kev xav fossilized ua nyob rau hauv lub substrate - ib tug tsis zoo duab ntawm lub cev)
- cam khwb cia fossils (tsim thaum muaj pwm puv rau hauv)
- trace fossils = ichnofossils (fossilized zes, gastroliths, burrows, footprints, thiab lwm yam)
Tsis tas li ntawd, Ichnologist yog dab tsi? Ib Ichnologist yog ib tus neeg uas kawm txog kab mob pob txha, cov cim khaws cia hauv cov ntaub ntawv fossil uas qhia cov pov thawj ntawm kev ua haujlwm ntawm cov kab mob.
Ntawm no, cov kab mob fossils qhia peb li cas?
Taug qab fossils muab peb nrog cov pov thawj tsis ncaj ntawm lub neej yav dhau los, xws li cov hneev taw, lem, burrows, tho txawv, thiab cov quav tso tseg los ntawm cov tsiaj, es tsis yog cov khoom seem ntawm lub cev ntawm tus tsiaj tiag tiag.
Koj taug qab fossils li cas?
Taug qab fossils suav nrog cov hneev taw, txoj kev taug, burrows, noj cov cim, thiab cov cim so. Taug qab fossils muab cov ntaub ntawv hais txog lub cev uas tsis tau qhia los ntawm lub cev pob txha . Taug qab fossils yog tsim thaum lub cev ua ib qho cim hauv av nkos lossis xuab zeb. Cov sediment dries thiab hardens.
Pom zoo:
Koj txhais qhov hnyav txhais li cas?
Cov ntsiab lus. Weighted Mean: Ib qho txhais tau tias qee qhov txiaj ntsig pab ntau dua li lwm tus. Thaum qhov hnyav ntxiv rau 1: tsuas yog muab txhua qhov hnyav los ntawm tus nqi sib xws thiab suav tag nrho. Txwv tsis pub, muab txhua qhov hnyav w los ntawm nws qhov sib piv tus nqi x, suav tias tag nrho, thiab faib los ntawm qhov sib npaug ntawm qhov hnyav: Qhov Ntsuas Ntsuas = ΣwxΣw
Cov ntsiab lus hydrophilic thiab hydrophobic txhais li cas thiab lawv cuam tshuam li cas?
Hydrophobic txhais tau hais tias cov molecule yog "ntshai" dej. Cov tails ntawm phospholipid yog hydrophobic, txhais tau tias lawv nyob hauv daim nyias nyias. Hydrophilic txhais tau hais tias cov molecule muaj affinity rau dej
Vim li cas nws tseem ceeb kom paub tias koj txhais li cas ntxiv?
Txhais qhov seem. Kev txhais cov lus tseem ceeb yog qhov tseem ceeb thaum koj faib ua lej vim tias koj tuaj yeem tau txais qhov teeb meem tsis raug yog tias koj tsis txhais cov seem kom raug. Piv txwv li, nyob rau hauv ib lo lus teeb meem koj yuav tsum tau faib thiab faib tawm rau koj nrog ib tug seem thiab koj yuav tsum tau muab sau tseg
Koj txhais li cas los ntawm lo lus txhais?
Lub ntsiab lus txhais yog ib nqe lus ntawm lub ntsiab lus ntawm ib lo lus (ib lo lus, kab lus, lossis lwm yam cim). Cov lus txhais tau muab faib ua ob pawg loj, cov ntsiab lus tsis txaus ntseeg (uas sim muab lub ntsiab lus ntawm lub ntsiab lus) thiab cov ntsiab lus txuas ntxiv (uas sim sau cov khoom uas ib lo lus piav qhia)
Txhais tau li cas los txhais ib daim duab peb sab?
Kev txhais lus. Kev txhais lus yog ib qho kev hloov pauv uas tshwm sim thaum ib daim duab tau txav los ntawm ib qho chaw mus rau lwm qhov chaw yam tsis tau hloov nws qhov loj, duab lossis kev taw qhia. Txhawm rau txhais cov ntsiab lus P (x, y), ib chav nyob sab xis thiab b units, siv P'(x + a, y + b)