Lub planetary nebula yog tsim thaum lub loj loj liab ejects nws sab nrauv. Cov duab zoo nkauj qhia tau hais tias lub ntiaj teb nebula yog ib theem hauv kev hloov pauv ntawm lub hnub qub qis. Ib tug dwarf dawb yog cov carbon core ntawm ib tug liab giant uas tau ejected nws photosphere raws li ib tug planetary nebula
Cov hauv qab no tuaj yeem qhia tau tias kev hloov tshuaj lom neeg tau tshwm sim, txawm hais tias cov pov thawj no tsis muaj tseeb: Hloov cov ntxhiab tsw. Hloov cov xim (piv txwv li, nyiaj rau reddish-xim av thaum hlau xeb). Hloov hauv qhov kub lossis lub zog, xws li kev tsim khoom (exothermic) lossis poob (endothermic) ntawm tshav kub
Organic compounds, uas yog cov tebchaw txuam nrog cov txheej txheem ntawm lub neej, yog cov ntsiab lus ntawm cov organic chemistry. Ntawm ntau hom organic tebchaw, plaub pawg loj muaj nyob hauv txhua yam muaj sia: carbohydrates, lipids, proteins, thiab nucleic acids
Ib qho kev qhia txog thaj chaw (GIS) yog ib qho system tsim los ntes, khaws cia, tswj xyuas, txheeb xyuas, tswj, thiab nthuav tawm txhua yam ntawm cov ntaub ntawv thaj chaw. Lo lus tseem ceeb rau cov thev naus laus zis no yog Geography - qhov no txhais tau hais tias qee feem ntawm cov ntaub ntawv yog spatial
Kev hloov pauv tsis tuaj yeem yog ob qho tib si lub cev thiab tshuaj, tab sis lub cev thiab tshuaj hloov pauv tuaj yeem tshwm sim ib txhij. Qhov no yog dab tsi tshwm sim nrog lub tswm ciab hlawv: lub wax yog yaj, uas yog ib qho kev hloov ntawm lub cev, thiab nws yog combusting, uas yog ib tug tshuaj hloov. Tsis muaj kev hloov pauv hauv cov tshuaj formula ntawm cov khoom
Radiometric dating tseeb rau cov me nyuam. Radiometric dating (feem ntau hu ua radioactive dating) yog ib txoj hauv kev kom paub tias muaj dab tsi qub. Txoj kev sib piv tus nqi ntawm ib txwm muaj hluav taws xob isotope thiab nws cov khoom lwj, hauv cov qauv. Cov txheej txheem siv paub qhov kev lwj
PV92 kab mob caj ces tsuas muaj ob qho alleles qhia tias muaj (+) lossis tsis muaj (-) ntawm Alu transposable caij ntawm txhua tus khub chromosomes. Qhov no ua rau peb PV92 genotypes (++, +-, lossis --). Tib neeg chromosomes muaj txog 1,000,000 Alu luam, uas sib npaug 10% ntawm tag nrho cov genome
Bohr qauv Hauv qhov no, tus qauv lees txais tam sim no ntawm lub atom yog dab tsi? Atom Qauv. [/caption] Cov qauv atom uas tau txais dav tshaj plaws yog qhov ntawm Niels Bohr . Tsis tas li ntawd, tus qauv ntawm lub atom yog dab tsi?
Tam sim no peb tuaj yeem daws qhov sib npaug Quadratic hauv 5 kauj ruam: Kauj Ruam 1 Faib tag nrho cov ntsiab lus los ntawm a (cov coefficient ntawm x2). Kauj Ruam 2 Txav tus lej sij hawm (c/a) mus rau sab xis ntawm kab zauv. Kauj Ruam 3 Ua kom tiav cov square ntawm sab laug ntawm qhov sib npaug thiab sib npaug qhov no los ntawm kev ntxiv tus nqi qub rau sab xis ntawm kab zauv
Txij li thaum 4/10 txo mus rau 2/5, qhov tshwm sim ntawm kev kos duab liab marble qhov twg tag nrho cov txiaj ntsig zoo sib xws yog 2/5. Qhia ua tus lej, 4/10 = . 4; 4/10 = 40/100 = 40%. Piv txwv tias peb suav cov marbles 1 txog 10
Peb siv cov lej sib xws los ua kom qhov teeb meem yooj yim dua los daws hauv peb lub taub hau los ntawm kev hloov txhua tus lej mus rau qhov ze tshaj kaum, nees nkaum, tsib caug lossis puas. Tab sis yog tias peb ua cov lej sib xws thiab sib npaug mus rau qhov ze tshaj plaws puas lossis kaum qhov chaw, 300 thiab 350 yog qhov yooj yim dua los suav hauv peb lub taub hau
Ntawm lub peev xwm tag nrho, tuaj yeem muaj txog li 1000 tus neeg tuaj koom ib txhij. Tus nqi ntau rau cov menyuam yaus tsuas yog nyob ib puag ncig $ 750- $ 950, nyob ntawm lub sijhawm xyoo, thiab tus nqi rau tsev neeg camp yog li $ 850- $ 1250, nyob ntawm seb muaj pes tsawg tus neeg hauv tsev neeg
Kho nrog Rhodochrosite Rhodochrosite yog lub pob zeb uas sib xyaw ua ke ntawm lub cev thiab sab ntsuj plig lub zog, txhawb kev hlub thiab kev mob siab rau thaum lub zog ntawm tus ntsuj plig. Rhodochrosite qhib lub plawv, txhawb nqa kev nyuaj siab thiab txhawb txoj kev xav zoo thiab zoo siab. Nws txhim kho tus kheej tsim nyog thiab soothes kev ntxhov siab
U yog pib tshaj tawm hauv m / s. t yog time ins. Piv txwv li, lub tsheb nrawm hauv 5 s ntawm 25 m / s txog 3 5 m / s. Nws nrawm hloov los ntawm 35 - 25 = 10 m / s
Txhawm rau nrhiav pH tshwj xeeb ntawm tus qauv, koj yuav xav tau daim ntawv kuaj pH lossis strip uas yog qhov tseeb tshaj litmus strip. Cov ntaub ntawv kuaj pH ntau dua lossis cov kab xev tuaj yeem muab cov txiaj ntsig ntsuas qis rau 0.2 pH units
Cov kab mob wilt yog ib qho ntawm cov kab mob loj tshaj plaws ntawm cov qos yaj ywm, uas muaj ntau tus tswv tsev. Ntawm qos yaj ywm, tus kab mob no kuj hu ua xim av rot, yav qab teb wilt, mob qhov muag los yog jammy qhov muag
Lawv taug kev hauv tib txoj kev, tab sis lawv co hauv av rov qab thiab tawm mus perpendicular mus rau qhov kev taw qhia ntawm nthwv dej mus. S nthwv dej yog qhov txaus ntshai dua li P nthwv dej vim tias lawv muaj ntau dua amplitude thiab tsim kev txav ntsug thiab kab rov tav ntawm qhov av
Cov ntiv tes tuaj yeem siv tau rau txhua txoj hauv kev: Muab kev ruaj ntseg biometric (piv txwv li, tswj kev nkag mus rau thaj chaw nyab xeeb lossis cov tshuab) Txheeb xyuas cov neeg raug mob amnesia thiab tsis paub tus neeg tuag (xws li cov neeg raug tsim txom loj, yog tias lawv cov ntiv tes nyob hauv cov ntaub ntawv)
Covariance yog ib qho kev ntsuas ntawm qhov kev hloov pauv hauv ib qho kev hloov pauv tau cuam tshuam nrog cov kev hloov pauv hauv qhov sib txawv thib ob.Tshwj xeeb, kev sib txawv ntsuas qhov degree uas ob qhov sib txawv yog sib txuam. Txawm li cas los xij, nws kuj yog feem ntau siv tsis raws cai raws li kev ntsuas dav dav ntawm yuav ua li cas monotonically ntsig txog ob qhov sib txawv
Lub rhombus muaj tag nrho cov khoom ntawm ib qho parallelogram: Ob khub ntawm sab nraud yog sib npaug. Ob leeg ntawm opposite sab yog sib npaug ntawm qhov ntev. Ob khub ntawm lub kaum sab xis sib npaug
Tom qab mitosis ob lub hlwb zoo tib yam tsim nrog tib tus naj npawb ntawm chromosomes, 46. Haploid hlwb uas tsim los ntawm meiosis, xws li qe thiab phev, tsuas muaj 23 chromosomes, vim hais tias, nco ntsoov, meiosis yog 'txo faib.'
Depletion cheeb tsam los yog depletion txheej yog ib cheeb tsam nyob rau hauv ib tug P-N junction diode uas tsis muaj mobile chargers. Depletion txheej ua zoo li ib qho thaiv uas tawm tsam qhov ntws ntawm electrons los ntawm n-sab thiab qhov ntawm p-sab
Txhawm rau kawm txog noob caj noob ces, Mendel tau xaiv los ua haujlwm nrog cov txiv laum huab xeeb vim tias lawv muaj cov cim qhia tau yooj yim (Daim duab hauv qab). Piv txwv li, cov txiv laum huab xeeb yog qhov siab lossis luv, uas yog qhov yooj yim rau kev saib xyuas. Mendel kuj tau siv cov txiv laum huab xeeb vim tias lawv tuaj yeem ua rau tus kheej pollinate los yog hla-pollinated
Domain, Codomain thiab Range Muaj cov npe tshwj xeeb rau dab tsi tuaj yeem nkag mus rau hauv, thiab dab tsi tuaj yeem tawm ntawm txoj haujlwm: Dab tsi tuaj yeem nkag mus rau hauv ib qho haujlwm hu ua Domain. Dab tsi tuaj yeem tuaj yeem tawm ntawm kev ua haujlwm hu ua Codomain. Qhov ua tau los ntawm kev ua haujlwm yog hu ua Range
Cov mis yog B = (Zmp + Nmn − M) c2, qhov twg mp thiab mn yog cov proton thiab neutron masses thiab c yog qhov ceev ntawm lub teeb
Av qeeg loj tshaj plaws nyob rau sab qaum teb California: hnub no: 2.7 hauv Hamilton City, California, Tebchaws Meskas. lub lim tiam no: 4.0 hauv Mendota, California, Tebchaws Meskas. xyoo no: 5.6 hauv Rio Dell, California, Tebchaws Asmeskas
Dej: H2S yog soluble hauv aqueous daws tab sis tuaj yeem tawm ntawm cov dej ntau theem lossis tsim sulfides thiab lwm cov tshuaj sulfur-muaj
Microevolution, los yog evolution ntawm ib tug me me, yog txhais raws li ib tug kev hloov nyob rau hauv lub zaus ntawm noob variants, alleles, nyob rau hauv ib tug pej xeem ntau tiam. Lub teb ntawm biology uas kawm txog allele frequencies nyob rau hauv cov pejxeem thiab yuav ua li cas lawv hloov lub sij hawm yog hu ua pej xeem noob caj noob ces
Dip ib kawg ntawm daim ntawv xiav litmus rau hauv cov tshuaj, ces tshem tawm sai sai. Cov ntawv xiav litmus kuaj rau cov kua qaub. Nws yuav tig liab tam sim yog tias cov tshuaj yog acidic. Nws yuav nyob xiav yog tias qhov kev daws teeb meem yog nruab nrab lossis yooj yim
Dej. Khaws cov av noo tab sis nco ntsoov tias Alocasias tsis nyiam ko taw ntub. Yog tias ua tau, dej thaum sawv ntxov (yog li lawv qhuav thaum hmo ntuj) thiab los ntawm hauv qab, ntawm thaj chaw hauv paus, kom cov nplooj tsis ntub dhau
Taiga yog lo lus Lavxias rau hav zoov thiab yog biome loj tshaj plaws hauv ntiaj teb. Nws ncav cuag Eurasia thiab North America. Lub taiga nyob ze rau sab saum toj ntawm lub ntiaj teb, nyob hauv qab ntawm tundra biome. Lub caij ntuj no nyob rau hauv taiga yog txias heev nrog tsuas yog snowfall
4. NBT. B. 5: Muab tag nrho cov lej mus txog plaub tus lej los ntawm ib tus lej tag nrho, thiab muab ob tus lej sib npaug, siv cov tswv yim raws li qhov chaw thiab cov khoom ntawm kev ua haujlwm
Hais txog Kev Sau Ntawv. Ib qho kev daws teeb meem tsis muaj qhov sib xyaw ntawm cov kua qaub tsis muaj zog thiab nws lub hauv paus conjugate (los yog lub hauv paus tsis muaj zog thiab nws cov conjugate acid). Qhov sib npaug ntawm cov kua qaub tsis muaj zog thiab nws lub hauv paus conjugate tso cai rau cov tshuaj tiv thaiv kev hloov pauv rau pH thaum me me ntawm cov kua qaub muaj zog lossis cov hauv paus ntxiv
Gene splicing yog ib qho kev hloov pauv hloov tom qab uas ib tus noob tuaj yeem code rau ntau cov proteins. Gene Splicing yog ua tiav hauv eukaryotes, ua ntej mRNA kev txhais lus, los ntawm kev sib txawv los yog tsis suav nrog cov cheeb tsam ntawm pre-mRNA. Gene splicing yog qhov tseem ceeb ntawm kev sib txawv ntawm cov protein
Ntxuav. Thaum koj tshem tawm tag nrho cov xim, nws yog lub sij hawm los ntxuav koj cov ntoo thuv kom tshem tawm cov av, grime thiab lwm yam kab mob. Pib nrog cov tshuaj ntxuav me me sib xyaw nrog dej, thiab siv cov tshuaj no siv daim txhuam cev, ntaub pua plag lossis txawm tias daim txhuam cev-style mop. So cov ntoo nrog dej huv kom tshem tawm cov xab npum, ces cia nws qhuav
Muaj pes tsawg hom nroj tsuag nyob hauv lub ntiaj teb no? Cov kws tshawb fawb tam sim no muaj lus teb. Muaj li ntawm 391,000 hom kab mob vascular nroj tsuag tam sim no paub txog toscience, ntawm 369,000 hom (lossis 94 feem pua) yog cov paj ntoo, raws li tsab ntawv ceeb toom los ntawm Royal BotanicGardens, Kew, hauv tebchaws United Kingdom
Lub San Andreas Fault yog ib qho kev ua txhaum uas paub zoo tshaj plaws hauv cheeb tsam San Francisco. Nws yog ib qho kev ua txhaum cai. Qhov no kuj yog qhov txhaum uas ntseeg tau ua rau 1906 Av qeeg & Hluav Taws thiab 1989 Loma Prieta Av qeeg
Chav Kawm Human Biology muab koj qhov kev pom zoo ntawm tus txiv neej ua ib hom kab mob lom. Koj yuav kawm txog noob caj noob ces, physiology, cell biology, evolution thiab kev loj hlob. Cov qauv qauv ntawm chav kawm tso cai rau koj ua raws li koj cov kev nyiam tshwj xeeb hauv Human Biology
Pib los ntawm kev ntsuas 1 tablespoon dej sov rau hauv lub qhov hluav taws kub hluav taws xob (lub raj mis dej qab zib). Ntxiv 3 mus rau 4 tee ntawm cov tshuaj ntxuav tais diav thiab 3 mus rau 4 tee ntawm cov zaub mov xim liab. Ua lub Volcano Erupt 1 tablespoon dej sov. Cov tshuaj ntxuav tais diav ua kua. Liab zaub mov xim. 1 tablespoon baking soda. Vinegar. Daim ntawv me me
Daim duab peb sab hluav taws lossis daim duab peb sab combustion yog ib qho qauv yooj yim rau kev nkag siab cov khoom xyaw tsim nyog rau feem ntau cov hluav taws kub.Cov duab peb sab qhia txog peb lub ntsiab lus hluav taws kub xav tau: kub, roj, thiab tus neeg sawv cev oxidizing (feem ntau yog cov pa oxygen)