Los ntawm kev tsim cov pa roj, kev tsim cov cua sov, thiab cov tshuaj tiv thaiv, cov nroj tsuag tshuaj tuaj yeem dhau los ua qhov tshwm sim ntawm kev tawg loj thiab debilitating. Cov no tuaj yeem ua rau muaj kev raug mob tawg loj heev, xws li kub hnyiab thib peb, thiab txawm tias muaj kev puas tsuaj loj heev uas tuaj yeem cuam tshuam rau cov zej zog hauv zos rau xyoo tom ntej
Cov qauv isomers muaj tib lub qauv molecular tab sis sib txawv ntawm cov atoms. Muaj peb hom qauv isomers: saw isomers, functional group isomers thiab positional isomers. Chain isomers muaj tib lub qauv molecular tab sis txawv kev npaj lossis ceg
Test crosses yog siv los kuaj ib tus neeg lub genotype los ntawm kev hla nws nrog ib tus neeg paub txog genotype. Cov tib neeg uas qhia txog cov phenotype recessive yog paub tias muaj homozygous recessive genotype. Lub phenotypically dominant kab mob yog tus neeg nyob rau hauv nqe lus nug nyob rau hauv ib tug xeem cross
Hauv Newtonian physics, lub caij nplooj zeeg dawb yog ib qho kev txav ntawm lub cev uas lub ntiajteb txawj nqus tsuas yog lub zog ua rau nws. Nyob rau hauv cov ntsiab lus ntawm kev sib raug zoo, qhov twg gravitation raug txo mus rau qhov chaw-lub sij hawm curvature, lub cev nyob rau hauv lub caij nplooj zeeg dawb tsis muaj quab yuam ua rau nws
meter Hauv qhov no, lub ntsuas ntsuas ntsuas qhov deb li cas? Astronomers siv metric units, thiab tshwj xeeb tshaj yog cov cgs ( cm siab -gram-thib ob) system. Lub hauv paus ntawm kev ncua deb yog qhov cm siab ( cm ). Muaj 100 centimeters hauv a meter thiab 1000 meters hauv a km .
Cheeb tsam strip mining. hom mining nto siv qhov chaw tiaj tus. ib tug earthmover strips deb lub overburden, thiab lub hwj chim shovel khawb ib tug txiav kom tshem tawm cov pob zeb hauv av deposit. Tom qab ntawd lub trench raug foob nrog overburden thiab ib qho kev txiav tshiab yog ua tib yam rau yav dhau los
VIDEO Ua li no, cov pob zeb zoo li cas dub? Augite. Augite yog tus qauv dub lossis xim av-dub pyroxene ntxhia ntawm cov pob zeb tsaus nti thiab qee cov qib siab. metamorphic pob zeb . Nws cov crystals thiab cleavage fragments yog ze li ntawm cov duab plaub nyob rau hauv cross-section (ntawm cov ces kaum ntawm 87 thiab 93 degrees).
Qee lub sij hawm ib qho teeb meem hais kom peb sib piv ob lub luag haujlwm uas sawv cev rau ntau txoj hauv kev. Piv txwv li, tej zaum koj yuav tau txais ib lub rooj thiab ib daim duab, thiab nug seb qhov twg muaj nuj nqi ntau dua rau tus nqi tshwj xeeb, lossis qhov ua haujlwm twg nce sai dua. Piv txwv: Ob lub luag haujlwm tau sawv cev rau ntau txoj hauv kev
Tom qab mRNA yog synthesized los ntawm DNA thaum lub sij hawm transcription, lub tshiab molecule txav los ntawm lub nucleus mus rau lub cytoplasm, dhau los ntawm lub nuclear membrane los ntawm ib tug nuclear pore. Ribosomes yog qhov chaw ntawm kev txhais lus, lossis kev siv cov ntaub ntawv hauv mRNA los tsim cov protein sib xws
Gravimetric txoj kev coj mus kuaj thiab kev tshuaj ntsuam feem ntau yog siv los ntsuas qhov muaj pes tsawg leeg ntawm cov khoom siv hauv huab cua uas tau sau los ntawm cov chaw ua haujlwm. Tom qab ntawd qhov hnyav ntawm tag nrho cov khoom sib xyaw ua ke ntxiv rau lim yields qhov hnyav ntawm cov qauv aerosol los ntawm qhov sib txawv
Ib txoj cai muaj zog tshaj plaws hauv physics yog txoj cai ntawm kev txuag lub zog. Rau kev sib tsoo tshwm sim ntawm cov khoom 1 thiab khoom 2 hauv ib qho kev sib cais, tag nrho lub zog ntawm ob yam khoom ua ntej kev sib tsoo yog sib npaug rau tag nrho lub zog ntawm ob yam khoom tom qab kev sib tsoo
Nruam vs. Discrete Distributions. Tswj kab ntawv: Ib qho kev faib tawm tsis sib xws yog ib qho uas cov ntaub ntawv tsuas tuaj yeem coj los ntawm qee qhov txiaj ntsig, piv txwv li cov lej. Ib qho kev faib tawm tas mus li yog ib qho uas cov ntaub ntawv tuaj yeem coj los ntawm txhua tus nqi nyob rau hauv ib qho kev teev tseg (uas yuav yog infinite)
California yog lub xeev uas muaj dej nyab. Feem ntau ntawm California yog qhov yooj yim rau dej nyab. Txhua lub nroog tau tshaj tawm tias thaj chaw nyab xeeb dej nyab ntau zaus. Yav qab teb California, cov suab puam, thiab cov cheeb tsam uas tsis ntev los no tau kub hnyiab los ntawm cov hluav taws kub hnyiab tau raug dej nyab
NH3 daim ntawv cog lus lub kaum sab xis yog 107 °. NF3bondangle yog 102 °. Muaj kev cuam tshuam ntau dua rau NH3 vim tias cov ntawv cog lus ib leeg tau noj tsawg dua chav, ze rau cov nitrogen. Fluorine yog ntau electronegative tshaj hydrogen thiab cov electron ceev nyob rau hauv N-F daim ntawv cog lus yog skewed rau fluorine
Feem ntau cov hluav taws txav mus rau qhov tsim ib qho 'V' qauv. Tshooj 4 ntawm NFPA 921 hais tias txhua qhov chaw roj tuaj yeem ua rau cov qauv hloov pauv 'V'. Thaum hluav taws kub hnyiab tawm ntawm phab ntsa, nws tsim ib qho inverted 'V' qauv. Thaum hluav taws kub hnyiab tawm nws mus txog lub qab nthab
1. Kev kawm txog cov tshuaj lom neeg thiab cov txheej txheem tseem ceeb tshwm sim hauv cov kab mob muaj sia; biological chemistry; physiological chemistry. 2. Cov tshuaj muaj pes tsawg leeg ntawm ib qho kev ua neej nyob lossis cov khoom siv lom neeg: kab mob biochemistry
Lub Nucleus & Nws Cov Qauv Eukaryotic hlwb muaj cov nucleus tseeb, uas txhais tau hais tias lub cell DNA nyob ib puag ncig ntawm daim nyias nyias. Yog li ntawd, lub nucleus tsev lub cell DNA thiab coj cov synthesis ntawm cov proteins thiab ribosomes, cellular organelles lub luag hauj lwm rau protein synthesis
Feem ntau cov huab cua sov huab cua feem ntau kuj yog evergreen. Nyob rau hauv cov huab cua txias, tsawg nroj tsuag yog evergreen, nrog ib tug predominance ntawm conifers, raws li ob peb evergreen broadleaf nroj tsuag tuaj yeem tiv taus txias txias hauv qab li ntawm − 26 ° C (− 15 ° F)
Ntuj chemicals: Dej: H2O. Cov pa oxygen: O2 Nitrogen: N2
Ntau lub ntsiab lus hnyav dua hlau yog tsim supernova tawg. Tus nqi ntawm lub zog tso tawm thaum lub sij hawm supernova tawg yog siab heev uas lub zog pub dawb thiab cov neutrons dawb streaming los ntawm cov tub ntxhais sib tsoo ua rau muaj kev cuam tshuam loj heev, ntev dhau los ntawm kev tsim cov hlau
Capacity of Short-Term Memory Yuav ua li cas yog tus lej tej yam yees siv nyob rau hauv cov nqe lus ntawm lub sij hawm luv luv nco (STM)? Nws txhais tau hais tias tus naj npawb tiag tiag ntawm cov khoom uas tus neeg laus tuaj yeem tuav tau hauv STM yog los ntawm 5 txog 9, rau cov neeg feem coob thiab feem ntau cov dej num, txhua yam ua tsis tau tom qab txog 7 yam khoom tsis cuam tshuam, ces cov khoom yuav poob los yog tso tawm
Kev piav qhia ntawm Markovnikov's Rule Mechanism with aSimple Example. Thaum ib tug protic acid HX (X = Cl, Br, I) yog ntxiv rau asymmetrically hloov alkene, ntxiv ntawm acidichydrogen yuav siv qhov chaw ntawm qhov tsawg hloov carbon atom ntawm ob daim ntawv cog lus, thaum halide X ntxiv rau ntau alkyl hloov carbon atom
Cov nroj tsuag nyob hauv chaparral xav tau kev hloov kho kom pab lawv ciaj sia. Cov kev hloov pauv no tuaj yeem koom nrog lub peev xwm kom tau dej los ntawm lawv cov nplooj, cov cag loj kom ncav cuag cov dej tob tob, thiab cov tawv ntoo uas tiv taus hluav taws
Biomagnification, tseem hu ua bioamplification lossis biological magnification, yog ib qho kev sib xyaw ntawm cov tshuaj lom, xws li tshuaj tua kab, hauv cov ntaub so ntswg ntawm cov kab mob siab ntev ntawm qib siab dua hauv cov khoom noj
Tick marks (pom hauv txiv kab ntxwv) qhia ob sab ntawm daim duab uas muaj qhov sib npaug ntawm qhov ntev (sab ntawm cov duab uas zoo sib xws lossis qhov sib tw). Cov kab ib leeg qhia tau hais tias ob txoj kab ntsug yog tib qhov ntev thaum lub doublelines qhia tias ob kab kab pheeb ces kaum yog tib qhov ntev
Synthesis thiab reactivity Tom qab thawj zaug sim cov synthesis nyob rau hauv 1903, Otto Ruff npaj nitrogen trifluoride los ntawm electrolysis ntawm ib tug molten sib tov ntawm ammonium fluoride thiab hydrogen fluoride
Theoretical moj khaum muab ib qho kev xav, los yog lo ntsiab muag, los ntawm kev tshuaj xyuas cov ncauj lus. Muaj ntau lub ntsiab lus sib txawv, xws li kev xav txog kev xav, kev xav txog kev sib raug zoo, lub koom haum theories thiab economic theories, uas tej zaum yuav siv los txhais cov ntsiab lus thiab piav qhia qhov tshwm sim
Teb thiab piav qhia: Lub dissolution ntawm borax nyob rau hauv dej yog ib tug endothermic cov tshuaj tiv thaiv yog li nws yog ib tug kub-nyob rau hauv cov tshuaj tiv thaiv. Cov tshuaj tiv thaiv tsis yog tshwm sim raws li qhov yuav tsum tau ua kom sov raws li cov tshuaj reactant rau borax kom yaj hauv dej. Yog li ntawd, solubility ntawm borax yog nyob ntawm qhov kub thiab txias
Ib tug ribosomes yog ib tug me me organelle koom nyob rau hauv tus txheej txheem ntawm ua protein, uas yog hu ua protein synthesis. Lub ribosome tswj kev txhais lus, uas yog qhov thib ob ntawm cov protein synthesis. Ribosomes tuaj yeem pom ntab dawb hauv cytoplasm lossis txuas rau qhov ntxhib endoplasmic reticulum
Cov deposits no tsim ib pob mineralized uas yog nyiaj txiag txaus siab rau cov miner. Ores rov qab los ntawm mining muaj xws li hlau, thee, roj shale, gemstones, limestone, chalk, dimension pob zeb, pob zeb ntsev, potash, gravel, thiab av nplaum
Lub Deccan Traps yog ib lub xeev loj Igneous lossis LIP (xws li cov pob zeb loj heev ntawm cov pob zeb tawg, nrog rau cov pob zeb plutonic lossis pob zeb volcanic, tshwm sim thaum kub magma extrudes los hauv lub ntiaj teb thiab ntws tawm. Lub Deccan Traps yog ib lub roob hluav taws loj tshaj plaws. cov xeev hauv ntiaj teb no
Tawg mus ua. asserted to be (siv los qhia tias ib tug neeg los yog ib yam dab tsi tau piav ntau favourably). tsis raug cai. Qhov kev qhia no tshwm sim los ntawm kev siv cov tawg ua ib qho lus txhais los txhais tau tias 'pre-eminent', ib qho kev nkag siab txij li thaum xyoo pua 18th
Cog txiav, tseem hu ua striking los yog cloning, yog ib tug txheej txheem rau vegetatively (asexually) propagating nroj tsuag nyob rau hauv uas ib daim ntawm qia los yog hauv paus ntawm cov nroj tsuag muab tso rau hauv ib tug haum nruab nrab xws li av noo, potting mix, coir los yog pob zeb. ntaub plaub
Mechanism of Heredity: Txij li thaum cov kab mob siab dua rov tsim dua kev sib deev thiab txij li cov phev thiab lub qe yog tib cov ntaub ntawv uas dhau los ntawm niam txiv mus rau cov xeeb ntxwv, cov txheej txheem ntawm kev tsim noob neej yuav tsum nyob hauv gametes. Lub qe muaj tsis tau tsuas yog ib tug nucleus tab sis kuj muaj ib co nyiaj ntawm cytoplasm
Cov dej tawv tuaj yeem ntsuas tau siv titration nrog ethylenediaminetetraacetic acid (EDTA). Daim ntawv ionised ntawm EDTA yog pom ntawm sab xis. EDTA yaj hauv dej tsim cov tshuaj tsis muaj xim. Qhov taw qhia, lub npe hu ua hlau ion taw qhia, yog yuav tsum tau rau qhov titration
Variable txhais. Ib qho kev sib txawv yog qhov ntau uas yuav hloov pauv hauv cov ntsiab lus ntawm qhov teeb meem lej lossis kev sim. Feem ntau, peb siv ib tsab ntawv los sawv cev rau qhov sib txawv. Cov tsiaj ntawv x, y, thiab z yog cov cim dav dav siv rau kev sib txawv
1869 Ib yam li ntawd, dab tsi yog keeb kwm qab qhov xwm thiab kev sib cav sib ceg? Cov nature versus nurtur debate yog ib qho teeb meem qub tshaj plaws hauv kev puas siab puas ntsws. Cov kev sib cav lub hauv paus ntawm cov txheeb ze kev koom tes ntawm noob caj noob ces thiab ib puag ncig yam tseem ceeb rau tib neeg txoj kev loj hlob.
Windflowers Bloom nyob rau hauv lub teeb thiab tsaus liab, xiav, mauve thiab fuchsia, thiab dawb. Windflowers hlob nyob rau hauv cov yeeb yuj clumps. Windflowers yog anemone, thiab yog nrov rau lawv hardiness thiab dav muaj. Lawv loj hlob nyob rau hauv clumps ntawm paj uas zoo li me me daisies, thiab muaj txiaj ntsig zoo hauv kev tsim kho kom zoo nkauj thiab hauv av npog
Teb: Xaiv cov hlwb uas koj xav tau tomerge. Txoj cai-nias thiab xaiv 'Format Cells'los ntawm cov ntawv qhia zaub mov popup. Thaum lub qhov rais Format Cells tshwm, xaiv qhov Alignment tab. Kos lub 'Merge cells'checkbox
Ntau hom limestone muaj xws li chalk, coral reefs, tsiaj plhaub limestone, travertine thiab dub limestone pob zeb. Chalk - Dawb Cliffs ntawm Dover. Lub npe nrov Dawb Cliffs ntawm Dover muaj chalk, ib hom limestone. Coral Reef Limestone. Tsiaj Plhaub Limestone. Limestone Ntau yam - Travertine. Dub Limestone Pob Zeb