Qhov chaw nruab nrab ntawm kev sib hloov, tseem hu ua instantaneous velocity center, los yog instantaneous center los yog instant center, yog lub ntsiab lus tsau rau ib lub cev nyob rau hauv kev npaj txav uas muaj xoom tshaj tawm ntawm ib lub sij hawm tam sim ntawd
Teb thiab piav qhia: Tag nrho magnification yog thaum cov khoom uas raug saib yog magnified rau nws qhov siab tshaj plaws txwv
Qhov chaw thiab qhov ntim yog xam rau txhua qhov peb-dimensional geometrical duab. Qhov chaw saum npoo ntawm ib qho khoom muab yog thaj chaw npog lossis thaj chaw nyob ntawm qhov chaw ntawm qhov khoom. Qhov ntim yog qhov chaw muaj nyob hauv ib yam khoom. Txhua daim duab muaj nws qhov chaw nto thiab ntim
Cov astronomers txhais li cas los ntawm lub hnub qub? Aconstellation yog ib pawg ntawm cov hnub qub uas txhua tus nyob hauv tib qhov chaw hauv qhov chaw. Ib tug constellation yog ib cheeb tsam nyob rau hauv lub ntuj raws li pom los ntawm lub ntiaj teb. Lub constellation yog ib qho randomgrouping ntawm cov hnub qub saum ntuj
TARE muaj nuj nqi / qhov tshwj xeeb yog siv los teeb tsa theempty thawv hnyav rau xoom, yog li qhov ntsuas tsuas pom qhov hnyav ntawm cov khoom hnyav xwb. Piv txwv li: muab ib lub tais npliag rau lub nplai. Lub nplai qhia qhov hnyav ntawm lub tais khoob (piv txwv li.Cov zaub yuav qhia qhov hnyav ntawm cov txiv apples nkaus xwb (xws li
Hla dhau tshwm sim ntawm prophase 1 thiab metaphase 1 thiab yog cov txheej txheem uas homologouschromosomes ua ke nrog ib leeg thiab sib pauv cov ntu sib txawv ntawm lawv cov khoom siv caj ces los ua cov chromosomes rov qab. Nws kuj tshwm sim thaum lub sij hawm mitotic division, uas yuav ua rau inloss ntawm heterozygosity
Lub laij lej no suav cov txiaj ntsig ntawm qhov kub thiab txias ntawm cov tshuaj tiv thaiv uas siv qhov sib npaug Arrhenius. k = A * exp (-Ea / R * T) qhov twg k yog tus nqi coefficient, A yog qhov tsis tu ncua, Ea yog lub zog ua kom muaj zog, R yog universal gas tas li, thiab T yog qhov kub (hauv kelvin). R muaj tus nqi ntawm 8.314 x 10-3 kJ mol-1K-1
Hauv daim vis dis aus no peb yuav sib npaug qhov sib npaug CaO + H2O = Ca(OH)2 thiab muab cov coefficients raug rau txhua qhov sib xyaw. Yuav kom sib npaug CaO + H2O = Ca(OH)2 koj yuav tsum nco ntsoov suav tag nrho cov atoms ntawm txhua sab ntawm cov tshuaj sib npaug
Cytoplasm-Air Lysosomes zoo li cov thoob khib nyiab vim lawv pov tseg cov khib nyiab hauv lub cell zoo li peb siv cov thoob khib nyiab pov tseg hauv tsev. Hauv ib lub cell, ribosomes yog cov qauv ntawm tes uas ua rau cov protein. Hauv chav ua noj, tib neeg ua zaub mov lossis proteins
Qhov fluff tuaj yeem mus txog 20 mais ntawm qhov cua, tab sis qhov ntawd tsuas yog qhov pib ntawm tsob ntoo txoj kev ntshaw rau kev nthuav tawm. Nws cov noob me me yuav ntab rau saum qhov tam sim no ntawm lub caij nplooj ntoo hlav tshiab, thiab, dej ntws mus rau lub puam xuab zeb, sprout nyob rau hauv 24 teev tom qab tsoo txawm tias qhov barest cobble
Cov cai rau Assigning Oxidation Numbers Lub convention yog hais tias cov cation yog sau ua ntej nyob rau hauv ib tug formula, ua raws li cov anion. Tus lej oxidation ntawm ib lub caij dawb yog ib txwm 0. Tus lej oxidation ntawm monatomic ion sib npaug ntawm tus nqi ntawm ion. Tus naj npawb oxidation ib txwm ntawm hydrogen yog +1. Tus naj npawb oxidation ntawm oxygen hauv cov tebchaw feem ntau yog -2
Membrane bound organelles feem ntau pom muaj nyob rau hauv eukaryoticcells thiab lawv pom nyob rau hauv feem ntau tus xov tooj nyob rau hauv lub cytoplasm.Lub mitochondria, golgi lub cev, nucleus, endoplasmic reticulum, chloroplast thiab lwm yam yog ib co ntawm cov piv txwv uas muaj daim nyias nyias cov qauv
Eurasian Phaj yog ib lub phaj tectonic uas suav nrog feem ntau ntawm cov teb chaws Eurasia (ib thaj av uas muaj cov teb chaws Europe thiab Asia), nrog rau qhov tshwj xeeb ntawm Indian subcontinent, Arabian subcontinent, thiab thaj tsam sab hnub tuaj ntawm Chersky Range. nyob rau hauv East Siberia
Nucleic acids yog qhov tseem ceeb tshaj plaws macromolecules rau lub neej txuas ntxiv. Lawv nqa daim ntawv qhia txog caj ces ntawm lub xov tooj ntawm tes thiab nqa cov lus qhia rau kev ua haujlwm ntawm tes. Ob hom nucleic acids yog deoxyribonucleic acid (DNA) thiab ribonucleic acid (RNA)
Qhov sib txawv tseem ceeb ntawm cov nroj tsuag vascular thiab nonvascular yog tias cov nroj tsuag vascular muaj cov hlab ntsha nqa dej thiab zaub mov mus rau txhua qhov sib txawv ntawm cov nroj tsuag. Lub phloem yog lub nkoj uas thauj khoom noj thiab xylem yog lub nkoj uas thauj dej
Lub hnub qub yog lub hnub uas tsim lub zog los ntawm nuclear fusion. Lub hli yog lub cev orbiting lwm lub cev. Ib lub hli ib txwm orbits ib lub ntiaj teb, tab sis lub hli tuaj yeem hloov mus rau lwm lub hli kom txog thaum nws rub tawm los ntawm qee yam loj dua. Txawm hais tias muaj cov ntiaj chaw tsis ncaj ncees uas tau raug tshem tawm ntawm lub hnub ci los ntawm lwm lub ntiaj teb
Thermodynamic lub xeev ntawm ib tug system hais txog qhov kub thiab txias, siab thiab kom muaj nuj nqis ntawm cov khoom tam sim no. Lub xeev txoj haujlwm tsuas yog nyob ntawm cov kev txwv no thiab tsis nyob ntawm seb lawv mus txog li cas. Piv txwv ntawm lub xeev cov haujlwm muaj xws li qhov ntom ntom, lub zog sab hauv, enthalpy, entropy
Yuav Ua Li Cas Ntsuam Xyuas Koj Ib Leeg Nucleotide Polymorphism (SNP) Chip Data Cluster koj SNPs. Ua ntej, txheeb cov ntaub ntawv los ntawm chromosome, thiab tom qab ntawd los ntawm chromosome txoj haujlwm, txhawm rau txhawm rau txhawm rau koj cov SNPs. Xaiv qhov SNPs los nrhiav. Nrhiav koj SNPS ntawm chromosome. Txheeb xyuas cov haujlwm gene. khawb ntxaum
Txoj kev xav ntawm evolution los ntawm kev xaiv ntuj tsim, thawj tsim nyob rau hauv Darwin phau ntawv 'Nyob rau hauv Keeb Kwm ntawm Hom' nyob rau hauv 1859, yog tus txheej txheem uas cov kab mob hloov lub sij hawm raws li qhov tshwm sim ntawm kev hloov ntawm lub cev los yog tus cwj pwm zoo
Yuav ua li cas nrhiav thaj tsam ntawm RectangularPrisms: Nrhiav thaj tsam ntawm ob sab (Length * Qhov siab) * 2 sab. Nrhiav thaj tsam ntawm sab uas nyob ib sab (Dav * Qhov siab) * 2 sab. Nrhiav thaj tsam ntawm qhov kawg (Length * Dav) * 2 kawg. Ntxiv peb thaj chaw ua ke kom pom qhov chaw nyob. Piv txwv li: Qhov chaw saum npoo ntawm ib daim duab plaub prism 5 cmlong, 3 cm
Cov tsib no muaj xws li txiv neej, poj niam, hermaphrodite, poj niam pseudohermaphrodites (cov neeg uas muaj zes qe menyuam thiab ib co txiv neej genitalia tab sis tsis testes), thiab txiv neej pseudohermaphrodites (cov tib neeg uas muaj noob qes thiab ib co poj niam genitalia tab sis tsis muaj zes qe menyuam)
Txawm li cas los xij, qws mosses, horsetails, thiab ferns muaj qhov tseem ceeb sporophyte theem thiab txo qis gametophyte theem. Cov gametophytes inconspicuous no tsim cov phev-ua antheridia thiab qe-cov kabmob archegonia - qee zaum ntawm tib tsob nroj, thiab hauv lwm hom ntawm ob hom nroj tsuag sib txawv
Chiral molecules feem ntau muaj tsawg kawg yog ib cov pa roj carbon atom nrog plaub yam tsis muaj kev hloov pauv. Xws li acarbon atom hu ua chiral center (lossis qee zaum astereogenic chaw), siv cov organic-hais lus. Txhua lub molecule uas muaj lub chaw chiral yuav yog chiral (nrog rau qhov tshwj xeeb ntawm meso compound)
Sijhawm: 3.3 lab xyoo dhau los
Cov lis dej num piav qhia txog qhov tshwm sim ntawm tus kab mob hauv qab, tsis yog tus kab mob nws tus kheej. Siv cov lus qhia hauv qab no ICD-10-CM Phau Ntawv Qhia rau cov lej tshwm sim: Daim ntawv qhia "Code thawj kab mob" yuav tshwm sim nrog cov kab mob hauv qab uas tau txheeb xyuas
Qhov no yog hu ua Markovnikov's Rule. Vim tias HBr ntxiv rau 'txoj kev tsis ncaj ncees nyob ib puag ncig' nyob rau hauv lub xub ntiag ntawm cov organic peroxides, qhov no feem ntau hu ua theperoxide effect lossis anti-Markovnikov ntxiv. Thaum tsis muaj peroxides, hydrogen bromide ntxiv rau propene ntawm anelectrophilic ntxiv mechanism
Kev thauj mus los feem ntau tshwm sim hla lub cell membrane. Tsuas yog thaum lawv hla lub bilayer lawv thiaj li txav tau cov molecules thiab ions nyob rau hauv thiab tawm ntawm lub cell. Lub membrane proteins yog heev tshwj xeeb. Ib qho protein uas txav cov piam thaj yuav tsis txav calcium (Ca) ions
Thaum siv Txoj Cai ntawm Cosines yog qhov tseem ceeb rau kev nrhiav: sab thib peb ntawm daim duab peb sab thaum peb paub ob sab thiab lub kaum sab xis ntawm lawv (zoo li qhov piv txwv saum toj no) cov kaum ntawm daim duab peb sab thaum peb paub tag nrho peb sab (raws li hauv qab no piv txwv)
Thaum muaj mob qog noj ntshav, yuav ua li cas rau lub sijhawm tsim nyog rau lub voj voog ntawm tes? Lub sij hawm tsim nyog txo qis los nrhiav kev kho. Lub cell tab tom npaj faib, yog li muaj ob npaug (nws faib ua ob lub hlwb) tus nqi ntawm DNA thaum kawg ntawm kev sib txuas, dua li thaum pib
Qhov ntom ntawm cov dej hiav txwv ua lub luag haujlwm tseem ceeb hauv kev ua kom dej hiav txwv dej ntws thiab cov cua sov ncig vim qhov tseeb tias cov dej ntom ntom ntws hauv qab qis dua. Salinity, kub thiab qhov tob tag nrho cuam tshuam qhov ntom ntawm cov dej hiav txwv. Qhov ceev yog ib qho kev ntsuas ntawm qhov nruj npaum li cas ntawm cov teeb meem tau ntim rau hauv ib lub ntim
Spruce tsob ntoo yog conical nyob rau hauv cov duab ua tsaug rau whorled ceg. Tsob ntoo hlob sai heev, los ntawm 6 mus rau 11 ntiv hauv ib lub caij, txawm tias qee hom tuaj yeem loj hlob 60 ntiv hauv ib xyoos. Spruce muaj cov nplooj zoo li rab koob uas tau muab qhwv rau ntawm cov ceg. Lawv loj hlob los ntawm cov qauv peg zoo li hu ua pulvinus
1 Teb. Ionic bonds tshwm sim los ntawm kev sib nrig sib attraction ntawm oppositely them ions thaum lub Covalent Bond yog ib daim ntawv cog lus uas tshwm sim los ntawm kev sib koom ntawm electrons ntawm nuclei. Lawv zoo li yuav muaj zog dua covalent bonds vim yog coulombic attraction ntawm ions ntawm cov nqi sib txawv
Pros of Nuclear Energy Low Pollution: Nuclear fais fab kuj muaj ntau tsawg lub tsev xog paj emissions. Tus Nqi Ua Haujlwm Tsawg: Nuclear fais fab tsim hluav taws xob pheej yig heev. Kev ntseeg tau: Nws yog kwv yees tias tam sim no tus nqi ntawm kev noj uranium, peb muaj uranium txaus rau lwm 70-80 xyoo
Cov chav fais fab tuaj yeem hloov mus rau lub zog units los ntawm kev sib npaug ntawm vib nas this [s], teev, [h], lossis xyoo [yr]. Piv txwv li, 1 kWh [kilowatt teev] = 3.6 MJ [MegaJoule]. Nrog 1 kWh, txog 10 liv dej tuaj yeem ua kom sov los ntawm 20 ºC mus rau qhov kub kub
Nyem rau 'Insert' tab thiab nrhiav cov pab pawg kab kos. Nyem 'Kem' lossis 'Bar' khawm thiab xaiv 'Pyramid' kev xaiv. Nyem qhov 'Tiav' khawm kom ntxig daim duab pyramid rau hauv daim ntawv ua haujlwm
Cov kws kho dej zoo thiab cov kws kho mob tshwj xeeb feem ntau qhia txog qhov tseem ceeb ntawm calcium carbonate (mgCaCO3 / l), thaum cov kws tshuaj qhia txog milliequivalents lossis molesper litre (meq/l lossis mmol/l). Conductivity los yog specificationconductance yog ib qho kev ntsuas ntawm lub peev xwm ntawm dej toconduct electric tam sim no
Tib neeg, tsiaj txhu thiab nroj tsuag txhua tus xav tau dej tsis huv kom ciaj sia. Cov khib nyiab tuaj yeem thaiv cov cua daj cua dub-dej thiab ua rau dej nyab. Cov khoom noj khoom haus thiab lwm yam khoom siv organic uas tau muab pov tseg tsis raug tuaj yeem ua rau cov algal blooms hauv dej, uas txo cov pa oxygen rau lwm cov dej hauv dej, xws li ntses
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
T / F Zoo li qhov pom spectrum, ib qho atomic emission spectrum yog ib qho kev sib txuas ntawm cov xim. T / F Txhua lub ntsiab lus muaj qhov tshwj xeeb atomic emission spectrum. T / F Qhov tseeb tias tsuas yog qee cov xim tshwm sim hauv cov ntsiab lus atomic emission spectrum qhia tias tsuas yog qee zaus ntawm lub teeb raug tso tawm