Cov txheej txheem:
- Cov kws tshawb fawb paleontologists feem ntau yuav pom cov pob txha nyob qhov twg?
- paleontologists kawm fossils nyob qhov twg?
- Pleoanthropologists yuav mus nrhiav cov pob txha nyob qhov twg?
- paleontologists kawm lawv qhov kev tshawb pom qhov twg?
Video: Paleontologists nrhiav cov pob txha nyob qhov twg?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Peb feem ntau nrhiav cov pob txha hauv thaj chaw suab puam, qhov twg muaj pob zeb sedimentary es tsis yog pob zeb metamorphic lossis igneous pob zeb. Txoj cai tseem ceeb rau kev txiav txim siab qhov twg los tshawb nrhiav yog hnub nyoog geology: yog tias koj paub lub hnub nyoog ntawm cov pob zeb hauv ib cheeb tsam, koj tuaj yeem pib tshawb nrhiav tsiaj uas nyob rau lub sijhawm ntawd.
Cov kws tshawb fawb paleontologists feem ntau yuav pom cov pob txha nyob qhov twg?
Fossils feem ntau pom nyob qhov twg cov pob zeb sedimentary ntawm lub hnub nyoog raug - uas rau dinosaurs yog Mesozoic - raug nthuav tawm. Qhov chaw zoo tshaj yog kwj hav dej, pob tsuas thiab hillsides, thiab tib neeg tsim tawm xws li quarries thiab kev txiav.
paleontologists kawm fossils nyob qhov twg?
Kev ua haujlwm
Feem ntau cov kws tshawb fawb paleontologists siv sijhawm ntau hauv thaj teb los sau cov pob txha uas lawv kawm. Kev ua haujlwm hauv teb tuaj yeem ua tau nyob txhua qhov chaw ntawm thaj chaw roob toj siab mus rau lub chaw txua txiag zeb hauv zosNtawm txhua qhov chaw, cov pob zeb ua tiav tau tshawb fawb kom qhov chaw ntawm txhua pob pob txha (cov hnab dawb) tuaj yeem txiav txim siab.
Pleoanthropologists yuav mus nrhiav cov pob txha nyob qhov twg?
Fossils muaj nyob hauv pob zeb sedimentary. Rau cov pob txha los ua pob txha, lawv yuav tsum tau khaws cia los ntawm kev faus thiab tsis muaj kev cuam tshuam rau lub sijhawm ntev hauv cov av. Yog li, peb yuav tsum nrhiav thaj chaw uas faus pob txha ceev thiab tob hauv av. Qhov no suav nrog cov chaw nyob ze cov dej ntws los yog pas dej.
paleontologists kawm lawv qhov kev tshawb pom qhov twg?
Paleontologists siv sijhawm feem ntau ntawm lawv lub sijhawm hauv chaw ua haujlwm thaum qhia, sau ntawv, lossis tshuaj xyuas lawv qhov pom. Txawm li cas los xij, qee qhov kev tshawb fawb hauv chav kuaj. Thaum ua haujlwm ua haujlwm, paleontologists ua haujlwm sab nraum zoov, qhov chaw lawv ua haujlwm hnyav rau txhua yam huab cua.
Pom zoo:
Cov pob txha pob txha txawv li cas pob txha pob txha?
pob txha pob txha yog tuab thiab tsim los ntawm osteons, hos pob txha pob txha tsawg thiab ua los ntawm trabeculae . Dab tsi yog qhov sib txawv ntawm cov pob txha pob txha thiab pob txha? Cov pob txha pob txha yog tsim los ntawm osteons thiab tsim cov txheej txheem sab nraud ntawm txhua pob txha.
Nyob hauv pob txha pob txha muaj dab tsi tshwm sim rau pob txha?
Ib pob txha pob txha tshwm sim thaum cov pob txha khoov thiab tawg, es tsis txhob tawg tag nrho rau hauv nyias daim nyias nyias Cov pob txha tawg zoo ib yam li qhov tshwm sim thaum koj sim tawg me me, "ntsuab " ceg ntawm tsob ntoo.
Vim li cas cov pob txha pob txha pob txha muaj ntau dua?
Cov menyuam yaus yuav muaj pob txha pob txha pob txha vim lawv cov pob txha mos thiab nkig tsawg dua tus neeg laus. Kev kho mob suav nrog kev tshem cov pob txha, lossis qee qhov kev phais . Vim li cas cov pob txha pob txha pob txha feem ntau tshwm sim hauv cov menyuam yaus?
Cov pob txha pob txha pob txha muaj li cas ntawm pob txha mos elastic?
Tsis zoo li cov pob txha mos thiab cov thyroid caj pas, uas muaj cov pob txha mos hyaline hyaline pob txha mos Abstract. Hyaline pob txha mos muaj nyob rau hauv synovial pob qij txha thiab pab txoj kev txav ntawm cov pob qij txha Nws yog tsim los ntawm chondrocytes thiab extracellular matrix.
Cov pob txha pob txha pob txha twg muaj qhov protuberance?
Cov pob txha occipital tsim cov duab tom qab ntawm lub pob txha taub hau thiab tom qab hauv pem teb ntawm cov kab noj hniav cranial. Ib qho tseem ceeb, sab nraud occipital protuberance, los yog inion, yog pom nyob rau sab nraud ntawm lub posterior midline (Daim duab 8-2).
