Yog lawm, mercury hlau nyob rau hauv cov ntaub ntawv ua kua muajluster (los yog lustre, ob qho tib si zoo li raug sau ntawv). Nws yog cov yam ntxwv ntawm cov hlau, thiab cov khoom siv hluav taws xob (electrons txav dawb txawm tias cov khoom siv) uas ua rau "metalic" ci, thiab yog li theluster
Down's syndrome yog tshwm sim los ntawm ib qho ntxiv ntawm tag nrho, lossis ib feem tshwj xeeb, ntawm chromosome 21. Qhov no ua rau peb ib feem lossis tiav daim ntawv theej ntawm chromosome, tseem hu ua trisomy 21. Ob qho tib si mitosis thiab meiosis koom nrog kev txiav txim faib ntawm chromosomes rau. tsim cov ntxhais cell
plaub Ib yam li ntawd, cov khaubncaws sab nraud povtseg ntawm cov hav zoov kub hnyiab yog dab tsi? Tropical rainforests muaj plaub txheej: Emergent Txheej. Cov ntoo loj heev thrust saum txheej txheej tuab tuab thiab muaj cov nceb zoo li cov ntoo loj.
Hom: M. roseus
Ib qho xwm txheej uas cov phenotypic tshwm sim ntawm qee yam mutant alleles sib npaug rau cov tsiaj qus-hom allele nyob rau hauv cov nqe lus ntawm lawv lub cev muaj nuj nqis. Saib nruab nrab gene txoj kev xav, ntsiag to mutations. Los ntawm: xaiv qhov nruab nrab hauv phau ntawv txhais lus ntawm Genetics »
Txoj Kev 2 Siv Cov Qauv Quadratic Ua ke tag nrho cov ntsiab lus zoo li no thiab txav mus rau ib sab ntawm qhov sib npaug. Sau cov qauv quadratic. Txheeb xyuas qhov tseem ceeb ntawm a, b, thiab c nyob rau hauv qhov kev sib npaug. Hloov cov nqi ntawm a, b, thiab c rau hauv qhov sib npaug. Ua lej. Simplify lub hauv paus square
Qhov tseeb tias Zero lub npe tiag tiag yog Hector Zeroni qhia lwm qhov kev sib raug zoo: Zero yog ib tug xeeb leej xeeb ntxwv ntawm Madame Zeroni, cov gypsy uas yuav tau foom phem rau Stanley tus yawm txiv yawg
Gene cloning yog ib qho kev coj ua hauv molecular biology labs uas yog siv los ntawm cov kws tshawb fawb los tsim cov ntawv luam ntawm cov noob tshwj xeeb rau kev siv qis qis, xws li sequencing, mutagenesis, genotyping lossis heterologous qhia ntawm cov protein
Pob zeb yog cov khoom siv ceramic ua los ntawm dej, xuab zeb, pob zeb, pob zeb crushed, thiab cement. Cov khoom xyaw yog tov ua ke kom huv si, thiab yog poured rau hauv ib daim ntawv. Tom qab cov pob zeb qhuav tag, nws muaj zog compressive zoo heev
Rockets tsim: Falcon 9, Falcon 1, ITS l
Lub ntsiab lus DPD sawv cev rau N, N-diethyl-p-phenylenediamine thiab yog ib qho reagent siv hauv kev kuaj tshuaj chlorine
Carbon Forms Covalent Bonds Piv txwv ntawm covalent bonds tsim los ntawm carbon muaj xws li carbon-carbon, carbon-hydrogen, thiab carbon-oxygen bonds. Piv txwv ntawm cov tebchaw uas muaj cov ntawv cog lus muaj xws li methane, dej, thiab carbon dioxide
Cov pos hniav loj heev, lossis roob tshauv (Eucalyptus regnans), ntawm Victoria thiab Tasmania, yog ib hom loj tshaj plaws thiab ncav cuag qhov siab txog 90 meters (300 ko taw) thiab ib ncig ntawm 7.5 meters (24.5 ko taw)
Los ntawm Wikipedia, dawb encyclopedia. Equilibrium constants yog txiav txim kom muaj nuj nqis chemical equilibria. Thaum qhov sib npaug ntawm qhov tsis tu ncua K tau nthuav tawm raws li qhov sib xyaw ua ke, nws txhais tau tias qhov kev ua haujlwm quotient yog tas li
Nyob rau hauv cov organic chemistry, bromine test isaqualitative test rau lub xub ntiag ntawm unsaturation (carbon-to-carbon ob los yog triple bonds), phenols thiab anilines.Qhov bromine xeem yog ib tug simplequalitativetest
Avery thiab nws cov npoj yaig xaus lus tias cov protein tsis tuaj yeem yog qhov hloov pauv. Tom qab ntawd, lawv tau kho qhov sib xyaw nrog DNA-destroying enzymes. Lub sij hawm no lub colonies ua tsis tau tejyam hloov. Avery xaus lus tias DNA yog cov khoom siv caj ces ntawm lub xovtooj
Kev nyab xeeb nyob rau hauv subtropical yog ib cheeb tsam ntawm kev nyab xeeb uas tshwm sim los ntawm kub thiab ntub lub caij ntuj sov, thiab txias rau me me winters. Qhov kev nyab xeeb no txhais tau hais tias qhov kub ntawm lub hli txias tshaj plaws ntawm 0 ° C (32 ° F) lossis − 3 ° C (27 ° F) thiab 18 ° C (64 ° F) thiab txhais tau tias qhov kub ntawm lub hli sov tshaj 22 ° C (72 ° C) ° F) los yog siab dua
Kawm Trigonometry hauv 5 kauj ruam Kauj Ruam 1: Tshawb xyuas koj txhua yam hauv paus. Kauj Ruam 2: Pib nrog lub kaum sab xis daim duab peb sab. Piv txwv li: Lub kaum sab xis muaj ob sab 5 cm thiab 3 cm pom lub hypotenuse. Siv Pythagoras theorem. Kauj Ruam 4: Kawm lwm yam tseem ceeb ntawm trigonometry. Kauj Ruam 5: Kev xyaum yog tus yuam sij rau txhua ceg ntawm kev ua lej
Cov qauv ntsuas kev ua haujlwm yog F * D / T, qhov twg F yog lub zog tawm, D yog qhov deb thiab T yog lub sijhawm.Qhov kev ua haujlwm ntawm qhov system kuj tau piav qhia raws li nws lub zog. lub zog yuav tsum tau siv nyob rau hauv txoj kev taw qhia. Siv qhov no, kev ua haujlwm raug xam raws liForce * nrug
Xam qhov ntim ntawm ib lub voos xwmfab lossis lub voos xwmfab uas siv cov mis V = l × w × h. Pib los ntawm kev muab qhov ntev × dav × qhov siab. Yog li yog tias koj lub voos xwmfab yog 5 cm ntev, 3 cm dav thiab 2 cm siab, nws ntim yog 5 × 3 × 2 = 30 cubic centimeters
University of Cambridge Copenhagen University
Lub ntiajteb txawj nqus tau piav qhia meej tshaj plaws los ntawm txoj kev xav dav dav ntawm kev sib raug zoo (tso tawm los ntawm Albert Einstein hauv xyoo 1915) uas piav txog lub ntiajteb txawj nqus tsis yog lub zog, tab sis vim yog qhov curvature ntawm spacetime los ntawm qhov tsis sib xws ntawm huab hwm coj
Lub lithosphere yog lub ntiaj teb txheej txheej sab nrauv, tsim los ntawm cov pob zeb nyob rau hauv lub crust thiab sab sauv mantle uas coj li nkig solids. Lub lithosphere tau tawg mus rau hauv daim loj hu ua daim hlau, uas yog ua los ntawm seafloor lithosphere (feem ntau basalt) los yog continental lithosphere (tsawg dua pob zeb, zoo li granite)
Autotroph yog ib yam kab mob uas tuaj yeem tsim nws tus kheej cov zaub mov siv lub teeb, dej, carbon dioxide, lossis lwm yam tshuaj. Vim tias autotrophs tsim lawv tus kheej cov zaub mov, lawv qee zaum hu ua cov neeg tsim khoom. Nroj tsuag yog hom paub ntau tshaj plaws ntawm autotroph, tab sis muaj ntau ntau hom kab mob autotrophic
Siv Cepheid Variables los ntsuas qhov deb Tsis tas li ntawd, lub hnub qub Cepheid lub sij hawm (feem ntau nws pulsates) ncaj qha ntsig txog nws qhov luminosity lossis ci ntsa iab. Tom qab ntawd nws qhov loj npaum li cas thiab qhov pom tseeb tuaj yeem cuam tshuam los ntawm qhov sib npaug ntawm qhov kev ncua deb, thiab nws qhov kev ncua deb tuaj yeem txiav txim siab
Chicago, IL, USA Geographic Information Lub Tebchaws United States Latitude 41.881832 Longitude -87.623177 DMS Lat 41° 52' 54.5952'' N DMS Ntev 87° 37' 23.4372'' W
Qhov kev hloov pauv tuaj yeem muaj nyob rau hauv cov pej xeem, tab sis feem ntau qhov kev hloov pauv los ntawm kev hloov pauv, lossis kev hloov pauv hloov pauv hauv lub cev cov noob. Cov kab mob uas muaj sia nyob dhau qhov zoo li no rau lawv cov xeeb ntxwv
Npe. ntawm, ntsig txog, lossis cuam tshuam rau lub ntsws; mob ntsws. cuam tshuam los yog cuam tshuam nrog mob ntsws
Thermodynamics: Kinetic thiab muaj peev xwm zog. Kinetic zog yog lub zog muaj los ntawm ib yam khoom hauv kev txav. Lub ntiaj teb tig ib ncig ntawm lub hnub, koj taug kev hauv txoj kev, thiab cov molecules txav hauv qhov chaw txhua tus muaj lub zog kinetic
GGG yog ib lub sij hawm coined los ntawm kev sib deev columnist Dan Savage los sawv cev rau cov zoo uas nws xav tias ua rau ib tug zoo kev sib deev khub. GGG stands rau 'zoo, muab, thiab kev ua si.' Xav tias 'zoo hauv txaj,' ' muab sijhawm sib npaug thiab txaus siab sib npaug,' thiab 'kev ua si rau ib yam dab tsi-hauv qhov laj thawj.'
Kev sib xyaw heterogeneous yog kev sib xyaw ntawm ob lossis ntau yam tshuaj (cov ntsiab lus lossis cov khoom sib txuas), qhov twg cov khoom sib txawv tuaj yeem pom qhov txawv thiab yooj yim sib cais los ntawm lub cev. Piv txwv li: sib tov ntawm xuab zeb thiab dej
Tsis tu ncua acceleration Txij li thaum peb siv meters thiab vib nas this raws li peb theem pib units, peb yuav ntsuas acceleration nyob rau hauv meters ib ob ib ob. Piv txwv li, yog tias qhov nrawm ntawm ib qho kev txav mus rau hauv txoj kab ncaj nraim hloov pauv tsis tu ncua (ntawm qhov hloov pauv tsis tu ncua) los ntawm 2 m / s txog 5 m / s dhau ib thib ob, ces nws qhov nrawm nrawm yog 3 m / s2
Hauv cov kab mob diploid, heterozygous yog hais txog ib tus neeg uas muaj ob lub alleles sib txawv rau qhov tshwj xeeb. Ib qho allele yog cov qauv ntawm cov noob caj noob ces lossis cov DNA tshwj xeeb ntawm cov chromosome. Ib tsob nroj heterozygous yuav muaj cov alleles hauv qab no rau cov noob zoo: (Rr)
Cov xwm txheej cuam tshuam rau pej xeem. Cov pej xeem raug cuam tshuam los ntawm ntau yam, lub ntsiab ntawm ntuj tsim yog cov hnub yug thiab kev tuag uas cuam tshuam rau theem ntawm kev hloov pauv ntuj (nce lossis txo) hauv cov pejxeem
Txoj kab nqes ntawm lub txaj yog siv los xam cov kev ntxhov siab ntawm lub txaj ntawm qhov qhib channel uas muaj cov kua dej uas tab tom ua kom tsis tu ncua, tsis sib xws
Lub taub ntawm lub tester yog kov rau cov neeg xyuas pib (piv txwv li, nws tuaj yeem siv rau ntawm ib lub xov hlau hauv qhov hloov, lossis muab tso rau hauv lub qhov hluav taws xob qhov hluav taws xob). Lub teeb neon siv sij hawm me ntsis tam sim no rau lub teeb, thiab yog li siv tau tus neeg siv lub cev muaj peev xwm mus rau hauv av kom ua tiav lub voj voog
Cov nag hav zoov tau muab faib ua plaub txheej, los yog dab neeg: txheej txheej xwm txheej, canopy, understory, thiab hav zoov pem teb. Txhua txheej tau txais ntau qhov sib txawv ntawm lub hnub ci thiab dej nag, yog li ntau hom tsiaj thiab nroj tsuag muaj nyob hauv txhua txheej
Lub synchronizing ntawm lub tshuab hluav taws xob yog ua tiav nrog kev pab ntawm synchroscope lossis nrog peb txoj kev teeb thaum muaj xwm txheej ceev. Nws yog ib qho tseem ceeb tshaj plaws uas ua ntej sib piv cov tshuab hluav taws xob qhov zaus thiab qhov hluav taws xob ntawm lub tshuab hluav taws xob yuav tsum tau sib phim
Ib txoj hauv kev ntawm kev txheeb xyuas cov lus tsa suab hauv physics lab yog siv daim kab xev ticker. Ib daim kab xev ntev yog txuas mus rau lub trolley txav thiab threaded los ntawm ib lub cuab yeej uas tso tus zuam rau ntawm daim kab xev ntawm lub sijhawm tsis tu ncua
Ntau hom Pine ntoo hauv California Npis Sov Pine. Npis Sov ntoo thuv (Pinus muricata) yog ib tsob ntoo ib leeg uas loj hlob ntawm qhov nruab nrab mus txog 90 feet siab. California Foothill Pine. Lub California foothill ntoo thuv (Pinus sabiniana) nce mus txog 80 ko taw hauv qhov siab ntawm kev loj hlob. Coulter Pine. Jeffrey Pine. Monterey Pine. Ponderosa Pine. Singleleaf Pinon. Qab Zib Pine