Txhawm rau txiav txim siab seb cov khoom puas yog acid orabase, suav cov hydrogens ntawm txhua yam khoom ua ntej thiab tom qab cov tshuaj tiv thaiv. Yog hais tias tus naj npawb ntawm hydrogenshas txo cov tshuaj yog cov kua qaub (donates hydrogen ions). Yog tias tus naj npawb ntawm hydrogens tau nce ntxiv tias cov khoom yog lub hauv paus ( lees txais hydrogenions )
Nyob rau hauv tag nrho dominance, tsuas yog ib tug allele nyob rau hauv lub genotype yog pom nyob rau hauv lub phenotype. Nyob rau hauv codominance, ob alleles nyob rau hauv lub genotype yog pom nyob rau hauv lub phenotype. Nyob rau hauv tsis tiav dominance, ib tug sib tov ntawm alleles nyob rau hauv lub genotype yog pom nyob rau hauv lub phenotype
Txawm hais tias lawv yuav muaj sia nyob thaum ya raws tsawg, lawv qhov kev loj hlob qeeb qeeb ntawm qhov chaw qhuav. Seedlings ncav cuag qhov siab ntawm 10 mus rau 20 cm (4 mus rau 8 nyob rau hauv) thawj xyoo thaum loj hlob tej yam kev mob. Thaum kawg ntawm 10 xyoo, qhov nruab nrab qhov siab yuav ncav cuag 5 m (17 ft) ntawm qhov chaw zoo dua
80 mus rau 100 feet
Sau lub nth lub sij hawm ntawm no quadratic naj npawb sequence. Kauj Ruam 1: Paub meej tias qhov sib lawv liag yog quadratic. Qhov no yog ua los ntawm kev nrhiav qhov sib txawv thib ob. Kauj Ruam 2: Yog tias koj faib qhov sib txawv thib ob los ntawm 2, koj yuav tau txais tus nqi ntawm a
Niaj hnub no Ozark hav zoov feem ntau yog cov ntoo qhib dawb thiab cov ntoo luv luv, Missouri tib hom ntoo thuv. Raws li tus dej ntws sycamore thiab paj rwb yog ntau, nrog rau cov dej birch thiab maples. Nyob rau hauv lub understory, redbud thiab dogwood muaj ntau, muab tso rau ib tug spectacular qhia feem ntau springs
Lub ntsiab geometric dav hlau duab yog: Lub voj voog. Daim duab peb sab. Rectangle. Lub Rhombus. Lub Square. Lub Trapezoid
Cov dej hiav txwv sib sib zog nqus trenches, volcanoes, kob arcs, submarine roob ranges, thiab cov kab txhaum yog cov piv txwv ntawm cov yam ntxwv uas tuaj yeem ua raws cov ciam teb tectonic. Thaum tshav kub kub nyob rau hauv lub asthenosphere tsim convection tam sim no uas ua rau tectonic daim hlau txav ob peb centimeters ib xyoos twg txheeb ze rau ib leeg
Qhov sib tov yog dej thiab ntsev yog hu ua brine tov
Yog tsis muaj lub ntiaj teb sib nqus teb, hnub ci cua - ntws ntawm cov khoom hluav taws xob uas ntws los ntawm lub hnub - yuav tshem tawm lub ntiaj teb cov huab cua thiab dej hiav txwv. Yog li ntawd, lub ntiaj teb magnetic teb tau pab ua kom muaj sia nyob hauv lub ntiaj teb, cov kws tshawb fawb tau hais
Ntawm hiav txwv theem qhov nruab nrab cua siab yog 1013 mb. Lwm txoj kev xav txog qhov no yog tias tag nrho qhov hnyav ntawm tag nrho cov huab cua saum hiav txwv theem hnyav txaus ua rau 1013 mb ntawm huab cua siab. Txij li cov huab cua (gas) yog cov kua, lub zog quab yuam ua nyob rau hauv tag nrho cov kev taw qhia, tsis yog downward
Xam pH ntawm ntsev tov loj NaF = 20.0 g. molar mass NaF = 41.99 g/mol. Luas = 0.500 L. of F – = 1.4 × 10 −11
Prairies yog ecosystems suav hais tias yog ib feem ntawm temperate grasslands, savannas, thiab shrublands biome los ntawm ecologists, raws li zoo xws li temperate climates, nruab nrab los nag, thiab ib tug muaj pes tsawg leeg ntawm nyom, tshuaj ntsuab, thiab shrubs, es tsis yog ntoo, raws li cov hom nroj tsuag tseem ceeb
Dab tsi yog cov reactants ntawm Pyruvate Oxidation? 2 NADH, 2 CO2, 2 Acetyl Co A
Cov qauv isomers muaj tib cov qauv molecular tab sis muaj kev sib txuas sib txawv ntawm cov atoms.Stereoisomers muaj cov qauv molecular zoo tib yam thiab cov qauv ntawm cov atoms. Lawv txawv ntawm ib leeg tsuas yog nyob rau hauv qhov chaw taw qhia ntawm cov pab pawg hauv cov molecule
Genetic code, qhov sib lawv liag ntawm nucleotides hauv deoxyribonucleic acid (DNA) thiab ribonucleic acid (RNA) uas txiav txim siab cov amino acid ib ntus ntawm cov proteins. Txawm hais tias cov kab sib txuas ntawm nucleotides hauv DNA muaj cov ntaub ntawv rau cov protein ntau, cov proteins tsis yog tsim los ntawm DNA ncaj qha
Nruab nrab ntug dej hiav txwv. Lub roob nruab nrab ntawm dej hiav txwv los yog nruab nrab-dej hiav txwv ridge yog lub roob hauv qab dej, tsim los ntawm phaj tectonics. Qhov kev txhawb siab ntawm cov dej hiav txwv hauv av no tshwm sim thaum cov dej ntws tawm hauv lub mantle hauv qab dej hiav txwv crust thiab tsim magma qhov twg ob daim phiaj tectonic sib ntsib ntawm ib thaj tsam sib txawv
Kev soj ntsuam seismic yog tsim los ntawm kev siv lub network ntawm cov seismometers portable nyob ib ncig ntawm lub roob hluav taws. Cov seismometers muaj peev xwm txheeb xyuas cov pob zeb txav hauv lub ntiaj teb crust. Qee qhov kev txav ntawm pob zeb tuaj yeem cuam tshuam nrog kev nce ntawm magma hauv qab lub roob hluav taws kub
Xav pab kom tsis txhob muaj kev kub ntxhov thoob ntiaj teb? Nov yog 10 yam yooj yim uas koj tuaj yeem ua tau thiab ntau npaum li cas carbon dioxide koj yuav txuag tau ua. Hloov lub teeb. Tsav tsawg. Rov ua dua ntxiv. Tshawb xyuas koj lub log tsheb. Siv dej kub tsawg. Zam cov khoom uas muaj ntau lub ntim. Kho koj lub ntsuas sov. Tso tsob ntoo
Nrhiav qhov limiting reagent los ntawm saib cov lej ntawm moles ntawm txhua reactant. Txiav txim siab qhov sib npaug ntawm cov tshuaj sib npaug rau cov tshuaj tiv thaiv. Hloov cov ntaub ntawv allgiven rau hauv moles (feem ntau yuav, los ntawm kev siv molarmass ua qhov hloov pauv). Xam cov mole piv los ntawm cov ntaub ntawv muab
Qos yaj ywm yog ib qho piv txwv. Nws yog qia vim tias nws muaj ntau cov nodes hu ua ob lub qhov muag nrog qhov chaw nruab nrab ntawm ob lub qhov muag hu ua internodes. Qos yaj ywm tubers tsim nyob rau thaum xaus ntawm o nyob rau hauv lub qia qauv, rhizomes. Txawm hais tias cov qos yaj ywm ntau yog qia, cov qos yaj ywm qab zib yog cov hauv paus hloov
Rau txhua tus neeg, rho tawm lub sijhawm tawm ntawm Cov Sijhawm Ua Haujlwm Net, thiab muab cov txiaj ntsig los ntawm nws qhov muaj kom tau txais nws tus kheej lub peev xwm. Ntxiv cov peev txheej ntawm tus kheej kom tau txais Pab Pawg muaj peev xwm hauv tib neeg cov xuab moos, thiab faib los ntawm yim kom tau txais lub peev xwm ntawm tus neeg-hnub
AMPS yog qhov siv zog (I) ntawm cov hluav taws xob hauv cov hlau, thaum WATTS (W) yog lub zog lossis lub zog yuav tsum tau txav cov electrons. Lub siab ntawm cov electron ntws yog VOLTS (E kuj hu ua EMF lossis ElectroMotive) Force
Hauv biology, qhov chaw ua haujlwm yog thaj tsam ntawm ib qho enzyme uas substrate molecules khi thiab raug tshuaj lom neeg cov tshuaj tiv thaiv. Lub chaw nquag muaj cov khoom seem uas tsim cov ntawv cog lus ib ntus nrog lub substrate (binding site) thiab residues uas catalyze cov tshuaj tiv thaiv ntawm lub substrate (catalytic site)
Puas yog photosynthesis thiab cellular respiration zoo sib xws? (1) Lawv ob leeg tshwm sim hauv chloroplasts. (2) Lawv ob leeg xav tau lub hnub ci. (3) Lawv ob leeg koom nrog cov organic thiab inorganic molecules
Hauv geology, pluton yog lub cev ntawm pob zeb intrusiveigneous (hu ua plutonic pob zeb) uas yogcrystallized los ntawm magma maj mam txias hauv qab ntawm lub ntiaj teb. Cov pob zeb ntau tshaj plaws hauv plutons yog granite, granite, tonalite, monzonite, thiab quartzdiorite
Enzymes ua haujlwm tsis tu ncua kom txog thaum lawv yaj, lossis dhau los ua denatured. Thaum cov enzymes denature, lawv tsis ua haujlwm thiab tsis tuaj yeem ua haujlwm. Qhov kub thiab txias tsis zoo ntawm pH - qhov ntsuas ntawm cov tshuaj acidity lossis alkalinity - tuaj yeem ua rau cov enzymes ua denatured
Tej zaum qhov tseem ceeb tshaj plaws ntawm lub ntiaj teb magnetic teb yog tias nws tiv thaiv peb ntawm lub hnub ci cua thiab hluav taws xob. Cov hlau nplaum kuj tuaj yeem tsim los ntawm kev siv hluav taws xob. Los ntawm wrapping ib tug hlau nyob ib ncig ntawm ib tug hlau bar thiab khiav tam sim no los ntawm cov hlau, cov hlau nplaum muaj zog heev tuaj yeem tsim tau
Txij li thaum DNA polymerase yuav tsum muaj 3 'OH pab pawg pub dawb rau kev pib ntawm kev sib txuas, nws tuaj yeem ua ke hauv ib qho kev taw qhia los ntawm kev txuas ntxiv 3' kawg ntawm cov saw hlau nucleotide preexisting. Li no, DNA polymerase txav raws tus qauv strand nyob rau hauv ib tug 3'-5' kev taw qhia, thiab tus ntxhais strand yog tsim nyob rau hauv ib tug 5'-3' kev taw qhia
Mars yog lub ntiaj teb nyob rau hauv lub ntiaj teb nrog lub thinatmosphere, muaj cov yam ntxwv ntawm qhov chaw nco txog ob qho tib si ntawm qhov cuam tshuam ntawm lub hli thiab cov hav, suab puam, thiab lub ncov qaum teb ntawm lub ntiaj teb. Mars muaj ob lub hli, Phobos thiab Deimos, uas me me thiab tsis zoo li qub
Lub perpendicular transversal theorem hais tias yog tias muaj ob txoj kab sib luag hauv tib lub dav hlau thiab muaj ib txoj kab perpendicular rau ib qho, ces nws kuj yog perpendicular rau lwm tus. Cia peb xav txog ib khub kab sib luag, l1 thiab l2, thiab ib kab k uas yog perpendicular rau l1
Magma thiab lwm yam khoom siv hluav taws xob tau xa mus rau qhov chaw uas lawv raug tshem tawm los ntawm qhov tawg lossis qhov. Qhov tseem ceeb ntawm lub roob hluav taws muaj xws li magma chamber, conduits, vents, craters thiab slopes. Muaj peb hom volcanoes: cinder cones, stratovolcanoes thiab shield volcanoes
Noble alloys hauv kev kho hniav. Noble hlau siv rau kev kho hniav castings tseem muaj alloys ntawm kub, palladium, thiab nyiaj (tsis yog ib tug noble hlau), nrog me me ntawm iridium, ruthenium, thiab platinum. Feem ntau yog siv los ua cov thaub qab rau ceramic ci, nrog rau qhov seem siv ua inlays, onlays, thiab unveneered crowns
Txij li thaum Mars muaj tsawg dua lub ntiaj teb, lub ntiajteb txawj nqus ntawm Mars yog tsawg dua qhov saum npoo ntawm lub ntiaj teb. Lub ntiajteb txawj nqus ntawm Mars tsuas yog kwv yees li 38% ntawm lub ntiajteb txawj nqus ntawm lub ntiaj teb, yog li yog tias koj hnyav 100 phaus hauv ntiaj teb, koj yuav hnyav 38 phaus ntawm Mars
Yog li ntawd, ntawm txhua qhov kev npaj av qeeg, kev xyaum av qeeg yog qhov tseem ceeb tshaj plaws. Lawv lub hom phiaj yog pab cov tub ntxhais kawm (thiab cov neeg ua haujlwm) kawm paub REACT tam sim ntawd thiab tsim nyog. Kev khiav tawm tsev tom qab av qeeg yog qhov tseem ceeb vim muaj kev phom sij ntawm hluav taws kub lossis tawg
Cov kws tshawb fawb forensic av xav txog cov av raws li cov khoom siv hauv ntiaj teb uas tau khaws cia los yog nyob rau lub hom phiaj thiab muaj feem cuam tshuam nrog cov teeb meem uas lawv tab tom tshawb nrhiav. Thaum cov kws tshawb fawb hauv av tshawb xyuas qhov kev ua txhaum cai, txhua yam khoom siv ntuj tsim thiab khoom tsim los ntawm lossis ze ntawm lub ntiaj teb yog suav tias yog ib feem ntawm cov av
Lub amplitude ntawm lub suab nthwv dej txiav txim siab nws nrov lossis ntim. Lub amplitude loj dua txhais tau hais tias lub suab nrov, thiab lub amplitude me me txhais tau hais tias lub suab softer.Nyob rau hauv daim duab 10.2 suab C yog nrov tshaj suab B. Kev vibration ntawm ib qhov chaw teev lub amplitude ntawm ib nthwv dej
Ib kob arc yog ib tug curving series ntawm volcanic Islands tuaj uas yog tsim los ntawm kev sib tsoo ntawm tectonic daim hlau nyob rau hauv ib tug dej hiav txwv chaw. Qhov tshwj xeeb hom phaj ciam teb uas ua rau cov kob arcs hu ua subduction zone. Nyob rau hauv ib cheeb tsam subduction, ib lub lithospheric (crustal) phaj yog yuam downward nyob rau hauv ib lub phaj sab sauv
Ib qho hluav taws xob tam sim no ntws thaum electrons txav los ntawm ib tus neeg xyuas pib, xws li cov hlau hlau. Cov electrons txav tuaj yeem sib tsoo nrog cov ions hauv cov hlau. Qhov no ua rau nws nyuaj rau qhov tam sim no ntws, thiab ua rau tsis kam
Cov teebmeem hauv qab no tau ntsib thaum qhov nce (qis) hauv cov peev txheej (piv txwv li, los ntawm kev nce hauv cov khoom noj khoom haus) ua rau nce (qis) hauv biomass ntawm qib siab dua trophic tom ntej, thiab cov teebmeem saum toj kawg nkaus tshwm sim. thaum nce (qis) hauv biomass ntawm qib siab trophic (xws li