E1 qhia txog kev tshem tawm, cov tshuaj tiv thaiv tsis zoo, qhov twg tus nqi = k [R-LG]. Hauv E1 cov tshuaj tiv thaiv, tus nqi txiav txim siab cov kauj ruam yog qhov poob ntawm pawg tawm mus tsim cov carbocation nruab nrab. Qhov ruaj khov dua qhov carbocation yog, qhov yooj yim dua nws yog tsim, thiab qhov ceev ntawm E1 cov tshuaj tiv thaiv yuav ua
Lub Tees Barrage tau qhib rau xyoo 1995. Nws siv sijhawm plaub xyoos los tsim thiab muaj 650 tonnes hlau. Qhib rau xyoo 1995, Tees Barrage yog qhov ua tau zoo tshaj plaws ntawm engineering raws li tus choj thauj neeg nto moo
Species Variation Variation nyob rau hauv ib hom yog tsis tshua muaj, tab sis yeej muaj ob yam loj ntawm variation nyob rau hauv ib hom: nruam variation thiab discontinuous variation. Kev hloov pauv tsis tu ncua yog qhov sib txawv ntawm cov kev hloov pauv tau muab faib rau ntawm qhov txuas ntxiv
1 meter ib xyoos twg
Lub hom phiaj ntawm kev cai lij choj ib puag ncig yog los tiv thaiv ib puag ncig thiab tsim cov cai rau cov neeg tuaj yeem siv cov peev txheej ntuj. Kev cai lij choj ib puag ncig tsis tsuas yog tsom los tiv thaiv ib puag ncig los ntawm kev puas tsuaj, tab sis lawv kuj txiav txim siab leej twg tuaj yeem siv cov peev txheej ntuj thiab cov ntsiab lus twg
Cov yam tseem ceeb tshaj plaws uas ua rau sab qaum teb feem ntau muab tso rau saum ib daim ntawv qhia muaj xws li kev tsim lub compass thiab kev nkag siab ntawm magnetic sab qaum teb thiab egocentricity ntawm tib neeg, feem ntau nyob hauv Europe
Cov fluffy dawb "parachutes" yog cov txiv hmab txiv ntoo capsule nrog ntau "hair" noob los ntawm Salicaceae tsev neeg ntawm cov ntoo. Thaum lawv pom ntau heev thiab nquag cem rau cov tsos mob ua xua, tus neeg mob ua xua feem ntau yuav ua rau pom tsis tshua pom (microscopic loj) paj ntoos hauv huab cua
Thawj kwv yees R∗ = 1 yr − 1 (1 lub hnub qub tsim hauv ib xyoos, qhov nruab nrab ntawm lub neej ntawm galaxy; qhov no tau suav tias yog kev saib xyuas) fp = 0.2 txog 0.5 (ib feem tsib rau ib nrab ntawm tag nrho cov hnub qub tsim yuav muaj cov ntiaj chaw) ne = 1 mus rau 5 (hnub qub nrog cov ntiaj chaw yuav muaj nyob nruab nrab ntawm 1 thiab 5 ntiaj chaw muaj peev xwm tsim lub neej)
Muaj ob hom kev metabolic: catabolic thiab anabolic. Catabolic txoj kev tso tawm lub zog thaum rhuav tshem cov molecules mus rau hauv cov molecules yooj yim dua. Cellular respiration yog ib qho piv txwv ntawm txoj kev catabolic. Cov txheej txheem ntawm glycolysis yog siv los tsim lub zog ntawm txoj kev catabolic
Autotroph. ib yam kab mob uas tsim nws tus kheej cov as-ham los ntawm inorganic tshuaj los yog los ntawm ib puag ncig es tsis txhob siv lwm yam kab mob. Heterotroph. Cov kab mob uas tau txais cov khoom noj organic los ntawm kev noj lwm cov kab mob los yog lawv cov byproducts thiab uas tsis tuaj yeem tsim cov organic tebchaw los ntawm cov khoom siv tsis zoo
Txhawm rau txo qhov siab - txo qhov quab yuam los yog ua kom thaj tsam qhov quab yuam ua rau. Yog tias koj tau sawv ntawm lub pas dej khov thiab cov dej khov pib tawg koj tuaj yeem pw tsaug zog kom thaj chaw sib cuag nrog cov dej khov. Tib lub zog (koj qhov hnyav) yuav siv tau, kis mus rau thaj chaw loj dua, yog li lub siab yuav txo
Sarcina yog 'cov kab mob ntawm cov kab mob uas muaj nyob hauv ntau cov kua dej, tshwj xeeb tshaj yog nyob rau hauv cov plab hnyuv, cuam tshuam nrog qee yam kab mob,' (Sarcina). Kev loj hlob ntawm Sarcina aurantiaca tau pom nyob nruab nrab ntawm pHs ntawm 6.5 thiab 7.5, nrog cov txiaj ntsig zoo tshaj plaws ntawm kev loj hlob tsuas yog nyob rau sab acidic ntawm nruab nrab (Thirkell, 375)
Volume yog ib qho kev ntsuas seb qhov chaw qhov khoom siv li cas. Piv txwv li ob lub thawv khau ua ke muaj ob npaug ntawm qhov ntim ntawm ib lub thawv, vim tias lawv siv ob npaug ntawm qhov chaw. Piv txwv li, hauv ib lub voos xwmfab peb pom qhov ntim los ntawm kev muab peb sab ntev ua ke. Hauv lub voos xwmfab saum toj no, qhov ntim yog 3 × 3 × 3 lossis 27
Av nplaum cov zaub mov feem ntau tsim nyob rau lub sij hawm ntev raws li qhov tshwm sim ntawm cov tshuaj maj mam huab cua ntawm cov pob zeb, feem ntau silicate-cov kabmob, los ntawm cov ntsiab lus qis ntawm carbonic acid thiab lwm cov kuab tshuaj diluted. Lub hauv paus av nplaum tsim raws li cov seem seem hauv av thiab nyob twj ywm ntawm qhov chaw tsim
Nqe lus piav qhia: Lub teeb pom kev luv luv yog lub teeb pom kev zoo nkauj classic uas cov ntsiab lus tau teeb los ntawm sab ntawm lawv lub ntsej muag uas nyob deb tshaj ntawm lub koob yees duab. Qhov feem ntawm lub ntsej muag uas ci ntsa iab tshaj plaws yog 'luv' dua li yog tias lub teeb tau muab tso rau ntawm sab ntawm lub ntsej muag uas nyob ze rau lub koob yees duab
Teb Teb. kev 15. HIO = Hypoiodous acid; IO-=Hypoiodite. HIO2 = iodous acid; IO2 = iod. HIO3 = iodic acid; IO3 = iod. HIO4 = Periodic acid; IO4-= lub sij hawm. Nyem qhia rau lwm tus paub, nws yuav pab tau li cas
Tsis yog, nws tsis tuaj yeem qhia cov kab lat/lon ntawm Google Maps, tab sis koj tuaj yeem ua qhov ntawd hauv Google Earth, uas koj tuaj yeem pom ntawm no https://earth.google.com/web/ Mus rau hauv cov ntawv qhia zaub mov (3 tuav saum toj kawg nkaus sab laug ntawm lub vijtsam) tom qab ntawd nyem rau ntawm Daim Ntawv Qhia Style, nqes mus rau Enable Gridlines. Hauv qab, koj yuav pom ib daim npav nrog cov kev tswj xyuas
Lub cell phab ntsa ntawm daim tawv nqaij yog ntau thicker dua pulp cell phab ntsa. Lub luag haujlwm ntawm daim tawv nqaij yog los tiv thaiv thiab muaj cov ntsiab lus ntawm cov txiv lws suav. Nyob rau hauv cov ntaub ntawv ntawm txiv lws suav pulp lawv muaj cov xim liab
Base khub tshwm sim thaum nitrogenous bases ua hydrogen bonds nrog ib leeg. Txhua lub hauv paus muaj ib tus khub tshwj xeeb: guanine nrog cytosine, adenine nrog thymine (hauv DNA) lossis adenine nrog uracil (hauv RNA). Cov hydrogen bonds tsis muaj zog, tso cai rau DNA kom 'unzip'
Txij li thaum lub zog gravitational yog inversely proportional rau lub square ntawm kev sib cais nyob deb ntawm ob tug interacting khoom, ntau sib nrug deb yuav ua rau cov tsis muaj zog gravitational zog. Yog li thaum ob yam khoom sib cais los ntawm ib leeg, lub zog ntawm gravitational attraction ntawm lawv kuj txo
Qee qhov liab thiab xiav wavelengths ntawm lub teeb yog qhov zoo tshaj plaws nyob rau hauv photosynthesis vim hais tias lawv muaj raws nraim cov nqi ntawm lub zog rau energize, los yog excite, chlorophyll electrons thiab boost lawv tawm ntawm lawv orbits mus rau ib tug ntau dua lub zog
Cov khoom muaj qhov loj, ntim, thiab cov duab vim hais tias cov ntsiab lus ntawm cov khoom yog tuav ua ke los ntawm cov muaj zog intermolecular rog. Nyob rau hauv qhov kub thiab txias, lub zog intermolecular nyhav los tswj lub thermal zog, cov khib nyiab tseem nyob hauv lub xeev ruaj
Ozone tshwm sim nyob rau hauv ob txheej ntawm huab cua. Cov txheej ze tshaj plaws rau lub ntiaj teb saum npoo yog troposphere. Ntawm no, theem av lossis 'phem' ozone yog cov pa phem uas ua rau ua pa tsis zoo thiab ua rau cov qoob loo, ntoo thiab lwm yam nroj tsuag puas. Nws yog ib qho tseem ceeb ntawm cov smog hauv nroog
Hauv cov cheeb tsam uas tsis tau tsim kho nrog cov av permeable uas tau txais cov dej nag txaus, cov lus dej feem ntau yog nqes mus rau cov dej ntws uas ua kom cov dej hauv av tawm mus thiab tso cov dej hauv cov dej. Springs, dej ntws, pas dej thiab oases tshwm sim thaum lub rooj dej nce mus txog saum npoo
Feem ntau, yog tias peb muaj ib qho kev sib npaug uas muaj qhov sib txawv, xws li x, ces 'kev daws qhov sib npaug' txhais tau tias nrhiav cov txheej txheem ntawm tag nrho cov txiaj ntsig uas tuaj yeem hloov pauv rau ib qho kev sib txawv los tsim cov kab zauv siv tau. Yog li, daws
National Geographic GeoBee yog qhov kev sib tw txhua xyoo tsim los txhawb thiab muab nqi zog rau cov tub ntxhais kawm xav paub txog lub ntiaj teb. GeoBee Coordinators: Nkag mus rau Tsev Kawm Ntawv Kev Sau Npe thiab Chaw Pabcuam txhawm rau rub tawm cov ntaub ntawv thiab daim ntawv xa nyiaj. Lub Xeev GeoBee kev tsim nyog yuav raug tshaj tawm thaum Lub Peb Hlis 2, 2020
Ib tug xoom los yog hauv paus (archaic) ntawm ib txoj haujlwm yog tus nqi uas ua rau nws xoom. Piv txwv li, lub zeros ntawm x2-1 yog x=1 thiab x=-1. Piv txwv li, z2 + 1 tsis muaj pes tsawg tiag (vim nws ob xoom tsis yog tus lej tiag). x2-2 tsis muaj rational zeros (nws ob xoom yog irrational tooj)
Thawj qhov tsis zoo yog tias qee cov ntaub ntawv yuav xaus nrog feem ntau ntawm cov ntaub ntawv tseem ceeb poob rau hauv ib lossis ob chav kawm, thaum qee qhov tsis muaj qhov tseem ceeb yuav nyob hauv lwm chav
Lub zog tsis tuaj yeem tsim los tsis tuaj yeem rhuav tshem. Lub zog muaj peev xwm yog lub zog hauv lub cev vim nws txoj haujlwm. Thaum lub zog kinetic yog lub zog hauv lub cev vim nws txoj kev txav. Cov mis rau lub zog muaj peev xwm yog mgh, qhov twg m sawv cev rau huab hwm coj, g sawv rau gravitational acceleration thiab h sawv rau qhov siab
Ib tsob ntoo deciduous los ntawm Tsev Neeg Birch (Betulaceae) Txawm li cas los xij, nws tau cog ntau thoob plaws hauv Ohio thiab sab hnub tuaj Tebchaws Meskas raws li tsob ntoo ntxoov ntxoo, khoom plig rau nws cov flaky, txiv kab ntxwv, ornamental bark thiab rippling foliage nyob rau hauv cov cua
Nyob rau hauv chemistry, ib tug reactivity series (los yog kev ua si series) yog ib tug empirical, xam, thiab structurally analytical kev loj hlob ntawm ib tug series ntawm hlau, teem los ntawm lawv 'reactivity' los ntawm siab tshaj mus rau qis tshaj
Txhawm rau nrhiav qhov y: x piv rau txhua qhov taw tes, koj sau koj tus nqi y ntawm sab laug ntawm txoj hnyuv thiab koj xvalue ntawm sab xis ntawm txoj hnyuv. Txhawm rau nrhiav tus x: yratio rau txhua lub ntsiab lus, koj sau koj tus nqi x ntawm sab laug thiab tus nqi y ntawm sab xis ntawm txoj hnyuv
Photosynthesis muaj Greek keeb kwm Greek keeb kwm ntawm photosynthesis ua ke los tsim lub ntsiab lus tseem ceeb 'ua ke nrog kev pab ntawm lub teeb'
Covalent bonds
Ib qho yooj yim-rau-siv ntse hnab tshos multimeter nrog AutoSensing feature ua rau lub ntsuas ntsuas kom paub txog cov tswv yim thiab hloov mus rau hom kev ua haujlwm raug (piv txwv li Voltage to Resistance ntsuas). Built-in Non-Contact Voltage (NCV) Detector tso cai rau kev tshawb pom sai ntawm qhov hluav taws xob nyob
Cov theem ntawm mitosis: prophase, metaphase, anaphase, telophase. Cytokinesis feem ntau sib tshooj nrog anaphase thiab / lossis telophase. Koj tuaj yeem nco qab qhov kev txiav txim ntawm theem nrog lub npe nrov mnemonic: [Thov] Pee ntawm MAT
Cov blocks raug tshem tawm feem ntau yog ntau pua kilometers dav, 50-100 km ntev, thiab tsuas yog ob peb kilometers tuab
Lub Tropic ntawm Cancer thiab Tropic ntawm Capricorn txhua qhov ntawm 23.5 degrees latitude. Lub Tropic of Cancer nyob ntawm 23.5 degrees sab qaum teb ntawm txoj kab nruab nrab thiab khiav hla Mexico, Bahamas, Egypt, Saudi Arabia, Is Nrias teb, thiab sab qab teb Tuam Tshoj
Kev ua yuam kev thaum lub sijhawm rho tawm (piv txwv li nqa nrog cov txheej txheem tsis raug), tuaj yeem daws tau yog tias cov kev daws tsis tau muab tso rau hauv lub thawv pov tseg! Cov khaubncaws sab nraud povtseg yuav tsum tau txais kev cawmdim kom txog thaum tom qab evaporation vim hais tias cov khoom xav tau yuav tsis soluble heev hauv cov kuab tshuaj siv
Lub herbarium (plural: herbaria) yog ib phau ntawm cov nroj tsuag khaws cia thiab cov ntaub ntawv cuam tshuam siv rau kev tshawb fawb. Cov qauv hauv herbarium feem ntau yog siv los ua cov khoom siv hauv kev piav qhia cov nroj tsuag taxa; qee qhov qauv yuav yog hom