Video: Dab tsi yog qhov tseem ceeb ntawm Qub Liab Sandstone?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
qub sandstone . oxford ua. views tshiab. qub pob zeb liab Geological lub sij hawm rau cov dej tshiab deposits ntawm lub sij hawm Devonian pom nyob rau hauv teb chaws Aas Kiv. Cov strata no tau sau tseg rau lawv cov ntses fossils ntawm cov ntses uas tsis muaj lub puab tsaig (ostracoderms), thawj lub puab tsaig ntses (placoderms), thiab thawj cov ntses pob txha (osteichthyes).
Hauv qhov no, vim li cas qee qhov sandstone liab?
Vim nws yog tsim los ntawm lub teeb xim minerals, xuab zeb feem ntau yog lub teeb tan hauv cov xim. Lwm cov ntsiab lus, txawm li cas los xij, tsim cov xim hauv xuab zeb . Cov feem ntau xuab zeb muaj ntau yam ntxoov ntxoo liab , tshwm sim los ntawm hlau oxide (xeb).
Tsis tas li ntawd, koj tuaj yeem nrhiav tau pob zeb liab nyob qhov twg? Liab Sandstone yog ib qho xwm txheej tshwm sim, pom 4-5 blocks hauv qab ntuj Liab Sand deposits, tab sis tsuas yog nyob rau hauv Mesa Biomes.
Tsis tas li ntawd, cov xuab zeb liab ua li cas?
Sandstone yog pob zeb uas muaj feem ntau ntawm cov zaub mov tsim los ntawm xuab zeb. Lub pob zeb nce nws tsim thoob plaws ib puas xyoo ntawm deposits tsim nyob rau hauv pas dej, dej ntws, los yog nyob rau hauv dej hiav txwv pem teb. Cov ntsiab lus no ua ke nrog cov zaub mov quartz lossis calcite thiab compresses.
Qhov twg yog liab sandstone pom nyob rau hauv Is Nrias teb?
Sandstone reserves hauv Is Nrias teb tau kis thoob lub xeev ntawm Rajasthan thiab Madhya Pradesh, Tshaj 90% ntawm cov nyiaj tso nyiaj ntawm xuab zeb nyob rau hauv Rajasthan, kis thoob plaws cheeb tsam ntawm Bharatpur, Dholpur, Kota, Jodhpur, Sawai-Madhopur, Bundi, Chittorgarh, Bikaner, Jhalawar, Pali, thiab Jaisalmer.
Pom zoo:
Dab tsi yog cov ntsiab lus tseem ceeb ntawm chromosomal txoj kev xav ntawm kev qub txeeg qub teg?
Boveri thiab Sutton's chromosome txoj kev xav ntawm kev qub txeeg qub teg hais tias cov noob muaj nyob rau ntawm qhov chaw tshwj xeeb ntawm chromosomes, thiab tias tus cwj pwm ntawm chromosomes thaum meiosis tuaj yeem piav qhia Mendel txoj cai ntawm kev xeeb tub
Vim li cas qhov tseem ceeb ntawm qhov tseem ceeb?
Thaum koj pom tus nqi kiag li hauv qhov teeb meem lossis qhov sib npaug, nws txhais tau hais tias txhua yam nyob hauv tus nqi tiag tiag yog qhov zoo. Cov txiaj ntsig tsis zoo feem ntau siv rau hauv cov teeb meem cuam tshuam nrog kev nyob deb thiab qee zaum siv nrog qhov tsis sib xws. Qhov ntawd yog qhov tseem ceeb uas yuav tsum nco ntsoov nws zoo li qhov deb ntawm xoom
Ob qhov tseem ceeb ntawm lub voj voog ntawm tes yog dab tsi thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Muaj ob theem tseem ceeb hauv lub voj voog ntawm tes. Thawj theem yog interphase thaum lub cell loj hlob thiab replicates nws DNA. Qhov thib ob yog theem mitotic (M-Phase) thaum lub sijhawm cell faib thiab hloov ib daim qauv ntawm nws cov DNA mus rau ob lub hlwb zoo tib yam
Dab tsi yog 2 qhov tseem ceeb ntawm lub voj voog ntawm tes thiab dab tsi tshwm sim rau lub cell hauv txhua theem?
Cov xwm txheej no tuaj yeem muab faib ua ob qhov tseem ceeb: interphase (hauv nruab nrab ntawm kev sib faib theem ua pawg G1 theem, S theem, G2 theem), thaum lub xov tooj ntawm tes tsim thiab ua nrog nws cov haujlwm metabolic; mitotic theem (M mitosis), thaum lub sij hawm lub cell yog replicating nws tus kheej
Dab tsi yog qhov tseem ceeb ntawm hluav taws xob zoo li qub?
Kev tswj cov pa phem. Cov hluav taws xob zoo li qub yog siv los tswj cov pa phem los ntawm kev siv cov nqi hluav taws xob zoo li qub rau cov av hauv cov huab cua thiab tom qab ntawd sau cov khoom siv hluav taws xob rau ntawm lub phaj lossis cov khoom siv hluav taws xob sib txawv. Cov khoom siv no feem ntau hu ua electrostatic precipitators