Kev piav qhia: Lub isotope ntawm lub ntsiab X yog muab los ntawm AZX, qhov twg Z yog tus naj npawb proton ntawm lub caij thiab A yog tus lej ntawm lub caij. Tus lej ntawm cov isotope no yuav yog 82 + 125 = 207 units, thaum nws muaj 82 protons. Saib ntawm lub rooj zaum, lub ntsiab lus 82 yog txhuas, thiab nws lub cim yog Pb
Hauv nws daim ntawv yooj yim tshaj plaws, lub raster muaj amatrix ntawm cov hlwb (los yog pixels) muab tso rau hauv kab thiab kab (los yog agrid) qhov twg txhua lub xov tooj muaj tus nqi sawv cev rau cov ntaub ntawv, xws li kub. Rasters yog cov duab dav hlau digital, duab los ntawm satellites, cov duab digital, lossis txawm tias scanned maps
Population Factors Qhov thib ob uas tib neeg ntxiv rau cov pej xeem yog los ntawm kev nkag tebchaws. Qhov no yog qhov tuaj mus tas li ntawm cov neeg tshiab rau hauv cov pejxeem. Cov tib neeg no yog cov tib hom tib yam li cov pej xeem, thiab lawv nce qhov loj ntawm cov pej xeem thaum lawv koom nrog pab pawg
Kev sib txhuam yog lub zog tshwm sim los ntawm ob yam khoom sib tsoo ua ke. Huab cua tsis kam thiab dej tsis kam yog hom kev sib txhuam. Lawv hu ua non- contact rog
Cov hlau ua tsawg dua thiab, hauv ib qho kev nkag siab, ua nyuaj. Tab sis thaum strain hardening ua rau nws yooj yim dua rau cov hlau deform, nws kuj ua rau cov hlau ntau nkig. Brittle hlau tuaj yeem tawg, lossis ua tsis tiav, yooj yim heev
Domain. Lub luag haujlwm ntawm ib qho kev ua haujlwm yog qhov ua tiav ntawm cov txiaj ntsig tau ntawm qhov hloov pauv ywj pheej. Hauv lus Askiv dawb, cov ntsiab lus no txhais tau tias: Lub npe yog cov txheej txheem ntawm txhua qhov ua tau x-tus nqi uas yuav ua rau muaj nuj nqi 'ua haujlwm', thiab yuav tso tawm cov txiaj ntsig tiag
Kev ua haujlwm yog ib txoj cai lossis kev sib txuas lus uas koom nrog txhua tus lej x hauv ib lub teeb A ib tus lej tshwj xeeb f(x) hauv ib pawg B. Lub teeb A yog hu ua tus sau ntawm f thiab cov txheej txheem ntawm f(x) yog npe f. Kev Sib Tham [Siv Flash] Plaub qhov sawv cev ntawm kev ua haujlwm: Symbolics lossis algebraic
Lub bunker tom qab yuav yog qhov koj xav tau los tiv thaiv koj tsev neeg. Thaum tsim ib lub tsev nyob hauv av, nco ntsoov tias muaj tsawg kawg yog 2 feet ntawm av saum toj. Qhov tob ntawm bunker qhov zoo dua. Nco ntsoov huab cua tuaj yeem tau txais stale sai sai hauv av
Raws li pom nyob rau hauv daim duab, ob hydrogen bonds yog tsim ntawm Adenine thiab Thymine, peb hydrogen bonds yog tsim ntawm cytosine thiab guanine. Qhov no yog vim Adenine (purine puag) ua khub tsuas yog nrog Thymine (pyrimidine puag) thiab tsis nrog Cytosine (purine puag)
Khoom: Nitrogen; Oxygen; phosphorus; selenium
Thaum lub caij cog qoob loo, nplooj yuav hloov dej ntau zaus ntau dua li nws qhov hnyav. Ib daim av ntawm pob kws muab tawm txog 3,000-4,000 nkas loos (11,400-15,100 liters) dej txhua hnub, thiab tsob ntoo ntoo loj tuaj yeem hloov pauv 40,000 nkas loos (151,000 liters) ib xyoos twg
Cov thawv ntim lawv tus kheej yuav tsum khaws cia hauv pem teb. Qhov no yuav tiv thaiv lawv los ntawm kev nkag mus rau hauv cov av thiab sib tov, nrog rau raug cuam tshuam rau tej yam nchuav los yog dej koj qhov chaw cia. Nco ntsoov xyuas kom meej tias thaum koj muab koj cov ntim tshuaj pov tseg kom lawv kaw nruj nreem
Hauv cov hlwb eukaryotic, lossis cov hlwb nrog lub nucleus, cov theem ntawm lub voj voog ntawm tes tau muab faib ua ob theem loj: interphase thiab mitotic (M) theem
Cov lus hais tias tag nrho cov khoom uas ua rau muaj teeb meem tas li nyob rau hauv kev txav mus los. Yog li ntawd, tag nrho cov hais nyob rau hauv cov teeb meem muaj kinetic zog. Lub kinetic txoj kev xav ntawm cov teeb meem pab piav qhia txog cov xwm txheej sib txawv - khoom, kua, thiab roj. Cov khoom tsis tas yuav txav mus rau tib lub nrawm
Qhov no txhais tau hais tias cov kua ua kua yog sib nrug thiab txav tau yooj yim dua. Txij li thaum cov particlescan txav, cov kua tuaj yeem ntws thiab nqa cov duab ntawm nws lub thawv. Qhov no yog vim lub zog ntawm kev nyiam ntawm cov dej hauv dej rub cov khoom ntawm qhov chaw ua ke
Yav dhau los peb tau hais tias cov khoom dot sawv cev rau kev sib raug zoo ntawm ob lub vectors, thiab sab laug nws ntawm qhov ntawd.Yog hais tias, cov khoom dot ntawm ob vectors yuav sib npaug rau cov cosine ntawm lub kaum sab xis ntawm vectors, lub sijhawm ntev ntawm txhua qhov vectors
Pib: Saib hauv lub sijhawm [0,1]. Txoj hauj lwm (tshem tawm) yog nce, yog li qhov kev tshaj tawm yog qhov zoo. Tab sis daim duab yog concave down, acceleration yog tsis zoo, yam yog qeeb, kom txog thaum nws ncav cuag tshaj tawm (thiab ceev) 0 thaum lub sij hawm 1
McDonaldization yog McWord tsim los ntawm sociologist George Ritzer hauv nws phau ntawv 1993 The McDonaldization of Society. Rau Ritzer, 'McDonaldization' yog thaum lub zej zog txais cov yam ntxwv ntawm lub tsev noj mov ceev ceev. McDonaldization yog ib qho kev rov tsim dua tshiab ntawm rationalization thiab kev tswj xyuas kev tshawb fawb
Txhawm rau txuag lub hnub, txhawm rau pab nws nyob ntev dua li 5 billion xyoo nws tseem tshuav, peb yuav xav tau qee txoj hauv kev los ua kom lub Hnub nrog ib rab diav loj loj. Txhawm rau kom tau txais qhov tsis muaj hluav taws xob hydrogen los ntawm cov hluav taws xob hluav taws xob thiab cov cheeb tsam convective mus rau hauv cov tub ntxhais. Ib lub tswv yim yog tias koj tuaj yeem tsoo lwm lub hnub qub rau hauv Lub Hnub
Yog tias tus neeg nqa khoom nqa tam sim no tau muab tso rau hauv qhov chaw sib nqus, nws ntsib lub zog Lorentz (tshwj tsis yog lub kaum sab xis ntawm qhov ntws ntawm tam sim no thiab cov kab hlau nplaum yog 0 °)
Kwv yees li 200 lab xyoo dhau los Pangea tsoo mus rau ob lub teb chaws tshiab Laurasia thiab Gondwanaland. Laurasia tau ua los ntawm cov teb chaws niaj hnub no ntawm North America (Greenland), Europe, thiab Asia
Xam cov naj npawb ntawm moles ntawm lub hauv paus koj ntxiv los txiav txim siab molar tshav kub ntawm qhov nruab nrab, qhia siv qhov sib npaug Δ H = Q ÷ n, qhov twg 'n' yog tus naj npawb ntawm moles. Piv txwv li, xav tias koj ntxiv 25 mL ntawm 1.0 M NaOH rau koj HCl los ua kom muaj cua sov ntawm nruab nrab ntawm 447.78 Joules
Chloroplast yog cov organelles uas nqus lub zog ntawm lub teeb thiab hloov nws mus rau chemical zog thaum lub sij hawm photosynthesis. Tib neeg lub qhov muag zoo li chloroplast vim hais tias, txawm hais tias lawv tsis ntes lub zog, qhov muag ntes lub teeb thiab nrog kev pab ntawm lub hlwb ua duab
Kev hloov noob caj noob ces yog kev hloov pauv mus tas li hauv DNA ib ntus uas ua rau cov noob, xws li qhov sib txawv ntawm cov neeg feem coob. Kev hloov pauv ntau hauv qhov loj; lawv tuaj yeem cuam tshuam qhov twg los ntawm ib qho DNA tsev thaiv (hauv paus khub) mus rau ib ntu loj ntawm chromosome uas suav nrog ntau cov noob
Cov hav zoov deciduous yog qhov tseem ceeb tshaj li thaj chaw nyob. Ntau hom tsiaj qus cia siab rau cov hav zoov deciduous thiab ntoo ua lawv qhov chaw tseem ceeb ntawm zaub mov thiab chaw nyob. Hauv Wyoming, feem ntau cov ntoo deciduous loj hlob ze rau cov kwj dej, dej ntws, lossis hauv thaj chaw ntub dej. Lawv cov hauv paus system pab kom cov av tsis txhob eroding thiab raug ntxuav tawm
Txhawm rau teeb tsa koj lub hnub ci, nrhiav qhov chaw uas raug lub hnub ntau li ntau tau. Mount lub sundial rau saum tus ncej, siv ib theem kom paub tseeb tias lub ntsej muag ntawm sundial yog theem. Fasten lub dial nyob rau hauv qhov chaw (nrog ib tug ntsia hlau) nrog lub gnomon tig mus rau sab qaum teb (Lub gnomon yog lub kaum sab xis uas nrum tus duab ntxoov ntxoo)
A. Cov hlau yog cov khoom siv hluav taws xob zoo heev. Yog hais tias tom qab tshem lub raj nrog hlau los ntawm lub boiling dej da dej, koj tsis kam ua ntej muab cov hlau mus rau hauv lub calorimeter, cov hlau yuav tsis nyob rau hauv lub kub ntawm boiling dej. Yog li ntawd, cov dej nyob rau hauv lub calorimeter yuav rhuab mus rau ib tug qis kub
RecA yog 38 kilodalton protein tseem ceeb rau kev kho thiab kho DNA. RecA lub koom haum nrog DNA loj yog nyob ntawm nws lub luag haujlwm tseem ceeb hauv kev sib koom ua ke ntawm homologous. Cov protein RecA khi ruaj khov thiab nyob hauv pawg ntev rau ssDNA los tsim cov nucleoprotein filament
Ntuj phenomena xws li av qeeg, roob tsim, thiab volcanoes tshwm sim nyob rau ntawm phaj ciam teb. Cov roob feem ntau yog tsim los ntawm qhov hu ua convergent phaj ciam teb, lub ntsiab lus ntawm ib thaj tsam ntawm ob daim phiaj txav mus rau ib leeg. Hom kev ciam teb no nws thiaj li ua rau muaj kev sib tsoo
Newton meter yog cov lus teb rau qhov no. Ib lub ntsuas hluav taws xob tshiab tsis yog ib chav tsev ntawm lub zog, tab sis, nws yog ib chav tsev uas tuaj yeem pom hauv SI system. Ib tug newton meter yuav ntsuas txhua hom quab yuam. Ib qho Newton, ntawm qhov tod tes, yog qhov khoom ntawm qhov deb
Ntxiv li 3-4 Tbsp ntawm Borax rau txhua khob dej hauv koj cov tshuaj. Do kom txog thaum Borax dissolves nyob rau hauv dej. Koj xav kom cov dej ntshiab vim yog cov dej pos huab ces koj cov crystals yuav pos huab
Txhua yam muaj sia tuaj yeem muab faib ua peb lub hauv paus: Kab mob, Archaea thiab Eukarya. Feem ntau ib leeg-celledorganisms pom nyob rau hauv Bacteria thiab Archaea domains yog hu ua asprokaryotes. Cov kab mob no yog tsim los ntawm cov hlwb prokaryotic - qhov tsawg tshaj plaws, yooj yim tshaj plaws thiab feem ntau cov hlwb qub
Tus qauv ntawm lub voj voog khoom noj khoom haus tau tsim thawj zaug hauv xyoo 1976, los ntawm P.F. Gersmehl, uas tau sim qhia qhov sib txawv ntawm ecosystems. Nws hais txog cov as-ham, pauv thiab khaws cia ntawm peb thaj chaw. - Cov nroj tsuag noj cov as-ham uas lawv tau ua rau hauv cov organic teeb meem tshiab
Biomolecule. Plaub hom biomolecules loj yog carbohydrates, lipids, nucleic acids, thiab cov proteins
DNA sawv cev rau deoxyribonucleic acid, thaum RNA yog ribonucleic acid. Txawm hais tias DNA thiab RNA ob leeg muaj cov ntaub ntawv caj ces, muaj qee qhov sib txawv ntawm lawv
Txoj kab nruab nrab yog 0 degrees latitude, thiab thawj meridian yog 0 degrees longitude. Txoj kab nruab nrab yog ib nrab taw tes ntawm North Ncej thiab South Ncej. Nws khiav ntawm ib sab mus rau sab thoob plaws nruab nrab ntawm lub ntiaj teb los ntawm thaj chaw ntawm South America, Africa, thiab Asia
Focal point. Lub focal point ntawm lub lens los yog daim iav yog qhov taw tes nyob rau hauv qhov chaw uas tib lub teeb rays sib ntsib tom qab dhau los ntawm lub lens los yog thaws tawm ntawm daim iav. Lub 'zoo meej' lo ntsiab muag lossis daim iav yuav xa tag nrho lub teeb rays los ntawm ib qho chaw focal, uas yuav ua rau pom qhov pom tseeb tshaj plaws
Siv cov potting mix formulated rau cacti los yog succulents los yog siv li niaj zaus potting av tov nrog vaj huam sib luag perlite los yog xuab zeb los xyuas kom meej cov av zoo-draining. Thaum repotting suab puam rose nroj tsuag, xyuas kom cov av qhuav ua ntej maj mam tshem tawm cov suab puam sawv ntawm nws lub lauj kaub
Lub teeb fluorescent, lossis fluorescent tube, yog lub teeb uas muaj mercury-vapor gas-discharge teeb uas siv fluorescence los tsim lub teeb pom kev. Ib qho hluav taws xob tam sim no nyob rau hauv cov roj excites mercury vapor, uas ua rau luv-yoj ultraviolet lub teeb uas ces ua rau ib tug phosphor txheej nyob rau hauv lub teeb ci
Hauv kev tshawb fawb, qhov ntev yuav raug ntsuas nrog tus ntsuas ntsuas siv SI units xws li millimeters thiab centimeters. Cov kws tshawb fawb ntsuas qhov loj nrog qhov sib npaug, xws li qhov sib npaug ntawm peb lub nqaj lossis hluav taws xob sib npaug. Hauv kev tshawb fawb, qhov ntim ntawm cov kua yuav raug ntsuas nrog lub tog raj kheej kawm tiav