Video: Leej twg tshawb pom keeb kwm keeb kwm?
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
Hanstein
Ib sab ntawm qhov no, leej twg tau thov apical cell theory?
Kev tshawb xav ntawm cell apical yog npaj siab los ntawm Hofmeister nyob rau xyoo 1857 thiab txhawb los ntawm Karl Wilhelm Von Nageli xyoo 1878. Raws li lawv muaj ib lub pyramidal nkaus xwb ntawm tes hauv kev tua apex ntawm feem ntau vascular cryptogams lossis ib leeg apical cev yog lub luag haujlwm rau kev tsim tua thiab kev loj hlob txuas ntxiv ntawm cov nroj tsuag.
dab tsi yog histogen hauv botany? Txhais ntawm histogen txoj kev xav: Theory hauv botany : qhov taw tes loj hlob (raws li lub qia lossis hauv paus) muaj peb lub histogens txhua qhov uas ua rau nce ntawm cov nqaij sib txawv - saib dermatogen, periblem, plerome.
Tom qab ntawd, ib tus tseem tuaj yeem nug, keeb kwm yog dab tsi?
Txhais ntawm histogen .: thaj tsam lossis thaj tsam uas tau txiav txim siab kom meej ntawm cov ntaub so ntswg thawj los yog los ntawm qhov tshwj xeeb ntawm cov khoom cog hauv lub cev tau ntseeg los tsim - saib dermatogen, periblem, plerome, histogen txoj kev xav - sib piv calyptrogen, corpus, tunica.
Dermatogen yog dab tsi?
Txhais ntawm daim tawv nqaij . 1: txheej txheej sab xub ntiag ntawm tsob ntoo lossis ib feem ntawm tsob ntoo uas raws li keeb kwm keeb kwm kev tshawb fawb ua rau nce rau ntawm daim tawv nqaij. 2: sab nrauv apical meristem ntawm lub hauv paus ntsis. - tseem hu ua protoderm.
Pom zoo:
Dab tsi yog daim ntawv qhia keeb kwm keeb kwm?
Ib daim ntawv qhia keeb kwm keeb kwm piav qhia cov ntaub so ntswg uas tau xa mus rau kev tshuaj xyuas thiab cov yam ntxwv ntawm yam mob qog noj ntshav zoo li cas hauv qab tsom iav. Ib daim ntawv qhia keeb kwm keeb kwm qee zaum hu ua daim ntawv txheeb xyuas keeb kwm lossis daim ntawv qhia txog kab mob
Dab tsi yog kev tshawb fawb kws tshawb fawb txog keeb kwm keeb kwm los kwv yees lub sijhawm tuag piav qhia vim li cas kev kwv yees tsis tas yuav ncaj?
Ib tus kws tshawb fawb kws tshawb fawb txog keeb kwm tshawb fawb kev txhim kho kab ntawm kab hauv lub cev los kwv yees lub sijhawm tuag. Cov kev txiav txim siab no tsis yog qhov yooj yim ib txwm vim tias tus nqi ntawm cov kab menyuam loj hlob tau cuam tshuam los ntawm ib puag ncig cuam tshuam xws li thaj chaw nyob, huab cua, thiab huab cua puag ncig
Tus kws kho mob keeb kwm keeb kwm puas tau nyiaj ntau tshaj nyob qhov twg?
Ib ntawm qhov muaj txiaj ntsig tshaj plaws thiab xav tau subfields ntawm kev tshawb fawb txog keeb kwm yog kab mob. Forensic Pathology Nyiaj Hli los ntawm Cheeb Tsam New Hampshire (1,610 tus neeg ua haujlwm): $ 275,050. South Dakota (460 ua haujlwm): $ 258,280. Alaska (500 tus neeg ua haujlwm): $ 256,630 cov nyiaj hli nruab nrab txhua xyoo. North Dakota (530 tus neeg ua haujlwm): $ 255,840. Hawaii (1,280 ua haujlwm): $ 255,410
Dab tsi yog lub luag haujlwm ntawm tus kws tshawb fawb keeb kwm keeb kwm anthropologist?
Txoj haujlwm ntawm kws tshuaj xyuas keeb kwm keeb kwm yav dhau los ua haujlwm hauv thaj chaw feem ntau suav nrog: Ua tib neeg seem. Ntxuav cov skeletal seem. Tshawb xyuas cov seem decomposed rau cov cim ntawm kev raug mob. Muab cov ntaub ntawv lom neeg txog cov seem. Sau cov ntawv ceeb toom. Ua haujlwm ze nrog cov neeg tshawb nrhiav thiab cov neeg sawv cev tshwj xeeb. Muab pov thawj hauv tsev hais plaub
Lub hom phiaj ntawm kev teeb tsa hauv keeb kwm keeb kwm yog dab tsi?
Kev sib sau yog txheej txheem uas cov ntaub so ntswg lossis cov hnoos qeev tau ntim rau hauv qhov hnyav ntawm qhov nruab nrab siv cov pwm. Txij li cov ntaub so ntswg thaiv tau tuab heev lawv xav tau kev txhawb nqa nruab nrab uas cov ntaub thaiv npog tau muab tso rau. Qhov nruab nrab txhawb nqa no yog hu ua txheej nruab nrab