Monatomic Minerals tau tshawb pom los ntawm David Hudson thiab cov kws tshawb fawb los ntawm lub koom haum Metallurgical qub ntawm. Soviet Union nyob rau hauv 1994. Lawv yog ib lub xeev atomic minerals uas tsis tau hloov mus rau hauv complex atomic. qauv yam ntxwv ntawm cov hlau ntxhia pob zeb
CO2 yog linear thiab SO2 qauv yog khoov, vim CO2 muaj cov pa oxygen tsis zoo ntawm txhua sab ntawm cov pa roj carbon zoo lawv tshem tawm ib leeg. Hauv cov qauv SO2 cov pa oxygen tsis nyob hauv ib leeg uas txhais tau tias muaj qhov zoo thiab qhov tsis zoo
Hauv RNA, uracil puag-pairs nrog adenine thiab hloov thymine thaum lub sijhawm DNA transcription. Methylation ntawm uracil tsim thymine
Tag nrho cov proteins, enzymes, amino acids, carbohydrates, nucleosides thiab ib tug xov tooj ntawm alkaloids thiab cov tshuaj hormones yog chiral compounds. Hauv kev lag luam kws tshuaj, 56% ntawm cov tshuaj tam sim no siv yog cov khoom siv chiral thiab 88% ntawm cov khoom kawg tau ua lag luam raws li cov neeg sib tw uas muaj kev sib xyaw ua ke ntawm ob enantiomers (3-5)
Thaum cov ntshav raug cuam tshuam, cov tee dej tau tawg los ntawm huab cua. Thaum cov tee dej no tawm tsam ib qho chaw, cov duab ntawm cov stain hloov nyob ntawm lub kaum sab xis ntawm qhov cuam tshuam, kev tshaj tawm, kev ncua deb thiab hom ntog cuam tshuam. Raws li lub kaum sab xis ntawm qhov cuam tshuam hloov, yog li qhov tshwm sim ntawm qhov tshwm sim stain
Xam cov cua sov tso tawm Tom ntej no, koj siv Q = mc ∆T, piv txwv li Q = (100 + 100) x4.18 x 8. Faib qhov tshwj xeeb kub muaj peev xwm ntawm dej, 4181 joules / kg degrees Celsius los ntawm 1000 kom tau cov duab rau joules / g degrees C. Cov lus teb yog 6,688, uas txhais tau tias 6688 joules ntawm tshav kub raug tso tawm
Cov txheej txheem linear lossis kev txhim kho yog ib qho uas qee yam hloov pauv lossis nce ncaj qha los ntawm ib theem mus rau lwm qhov, thiab muaj qhov pib thiab qhov xaus. Ib daim duab los yog daim ntawv muaj cov kab ncaj. cov ntse, linear designs ntawm Xya caug thiab yim caum
Peb kuj tseem yuav suav qhov kev faib ua feem nruab nrab thiab hu nws p-bar. Nws yog tag nrho cov kev ua tiav tau muab faib los ntawm tag nrho cov kev sim. Cov lus txhais uas tsim nyog tau qhia rau sab xis. Qhov ntsuas ntsuas muaj tib yam qauv zoo ib yam li ua ntej (saib rho tawm yuav tsum muab faib los ntawm tus qauv yuam kev)
Txoj kev ntseeg ruaj khov hais tias txawm tias lub qab ntuj khwb nthuav dav, txawm li cas los xij nws tsis hloov nws lub sijhawm. Txhawm rau ua qhov no, cov teeb meem tshiab yuav tsum tau tsim kom muaj qhov sib npaug sib npaug ntawm lub sijhawm
Txhawm rau nrhiav qhov ntev ntawm lub tog raj kheej / Khoom: Tuav lub tog raj kheej los ntawm nws qhov kawg siv lub puab tsaig qis ntawm vernier caliper. Nco ntsoov nyeem ntawm lub ntsiab ntsuas uas nyob rau sab laug ntawm vernier scale xoom cim. Tam sim no saib rau lub cim ntawm vernier nplai uas kab nrog lub cim ntawm lub ntsiab teev
Weeping dawb spruce ntoo (Picea glauca "Pendula") yog koob-leaved evergreen conifers uas hardy nyob rau hauv US Department of Agriculture hardiness zones 2 mus rau 9. Lawv ncav cuag qhov siab ntawm 10 feet thaum lawv muaj 10 xyoo thiab maj mam loj hlob. mus rau qhov siab ntawm 40 mus rau 50 ko taw nyob rau 30 xyoo tom ntej
Qhov no yog vim lub tshav kub ib lub teeb emits. Yog tias koj xav siv cov xim rau lub teeb qhov muag ncaj qha, cov lus teb tsis yog. Koj siv tsis tau cellophane los hloov xim. Cov lus teb zoo dua yog qee yam hu ua teeb pom kev zoo gel lossis cov xim pob tshab uas tuaj yeem siv rau ntawm qhov muag teeb
Nitrate ions thiab nitrite ions raug hloov mus rau nitrous oxide gas thiab nitrogen gas (N2). Cov cag ntoo nqus ammonium ions thiab nitrate ions siv los ua cov molecules xws li DNA, amino acids, thiab cov proteins. Organic nitrogen (cov nitrogen hauv DNA, amino acids, proteins) tawg mus rau ammonia, ces ammonium
Sau lub tog raj kheej txog ib nrab ntawm cov tshuaj sodium chloride. Ntxiv ob peb droppers uas muaj cov nyiaj nitrate tov rau lub tog raj kheej. Tam sim ntawd ib daim ntawv dawb precipitate. Silver nitrate yog ib qho muaj zog oxidizer, tab sis cov tshuaj yog dilute zoo
Tree Lichens yog dab tsi? Lichens ntawm cov ntoo yog cov kab mob tshwj xeeb vim tias lawv yog ib qho kev sib raug zoo ntawm ob kab mob - fungus thiab algae. Cov fungus loj hlob ntawm tsob ntoo thiab tuaj yeem sau cov dej noo, uas cov algae xav tau. Lichen ntawm tsob ntoo bark yog kiag li tsis muaj teeb meem rau tsob ntoo nws tus kheej
Cov saw hlau thauj khoom siv hluav taws xob siv cov khoom lag luam los ntawm thawj ob txoj haujlwm ntawm glycolysis thiab citric acid voj voog kom tiav cov tshuaj tiv thaiv uas hloov peb cov zaub mov rau hauv lub zog siv tau ntawm tes
Lub system ntawm units yog ib pawg ntawm cov units uas muaj feem xyuam rau kev xam. Piv txwv li, nyob rau hauv lub MKS system, lub hauv paus units yog lub ' meter ', kilogram, thiab thib ob, uas sawv cev rau lub hauv paus qhov ntev ntawm qhov ntev, loj, thiab lub sij hawm, feem. Nyob rau hauv no system, chav tsev ntawm ceev yog lub 'meter' ib ob
Piv txwv ntawm Kev Hloov Lub Cev Crushing ib lub kaus poom. Melting ib lub thawv dej khov. Boiling dej. Sib tov xuab zeb thiab dej. Txhaum iav. Dissolving qab zib thiab dej. Txiav daim ntawv. Txiav ntoo
Koj cov khoom tawg tag nrho, lossis TDS, tus nqi yog qhov ntsuas ntawm tag nrho cov khoom uas yaj hauv koj lub pas dej. Cov pas dej da dej yuav tsum muaj qhov siab tshaj TDS tus nqi ntawm ib ncig ntawm 1,500 txog 2,000 ppm. Piv txwv li, cov dej haus tuaj yeem muaj qhov siab tshaj TDS tus nqi ntawm 500 ppm raws li EPA
Manually Test Dip ib lub strip rau hauv pas dej ua ke ntawm lub luj tshib qhov tob thiab tshem tawm tam sim ntawd. Tuav lub xeem strip theem rau 15 vib nas this thiab muab piv rau daim ntawv xim. Sau koj cov txiaj ntsig kuaj xim ntawm lub vijtsam hauv qab no hauv 15 vib nas this. Rov ua dua tom qab ob teev ntawm kev ntxiv cov khoom rau hauv pas dej ua ke
Txhawm rau nrhiav ib lub quarter ntawm tus lej faib tus lej los ntawm 4. Yog li 1640 muab faib los ntawm 4 yog 410
Zoo li archeans, eubacteria yog prokaryotes, txhais tau tias lawv cov hlwb tsis muaj nuclei uas lawv DNA khaws cia. Eubacteria raug kaw los ntawm phab ntsa ntawm tes. Phab ntsa yog ua los ntawm cov kab txuas txuas ntawm peptidoglycan, ib qho polymer uas sib txuas ob qho tib si amino acid thiab qab zib chains
Pob zeb yog cov khoom sib xyaw ua ke uas muaj cov cement, dej, nplua aggregates thiab coarse aggregates. Cov khoom siv tau hais tias yog homogeneous thaum nws cov khoom zoo ib yam hauv txhua qhov kev qhia. Txwv tsis pub nws yog cov khoom siv heterogeneous. Cement tej zaum yuav hu ua homogeneous khoom
Cov nroj tsuag muaj cov phab ntsa ntawm tes ntxiv rau lawv cov cell membranes thaum cov tsiaj cell tsuas muaj ib daim nyias nyias. Ob leeg cog thiab tsiaj hlwb muaj vacuoles tab sis lawv loj dua nyob rau hauv cov nroj tsuag, thiab feem ntau tsuas muaj 1 vacuole nyob rau hauv cov nroj tsuag hlwb thaum tsiaj hlwb yuav muaj ob peb, me me
Hauv paus: CAND. Lub ntsiab lus: (kub, ci) Piv txwv: INCANDESCENT, CANDLE, CANDOR, INCENDIARY. Hauv paus: CANDID. Lub ntsiab lus: (dawb, meej, siab dawb)
Cov ntoo raug suav tias yog cov khoom muaj sia vim tias lawv ua tiav txhua yam ntawm cov khoom muaj sia: Kev Loj Hlob: Los ntawm photosynthesis thiab los ntawm kev nqus cov as-ham, minerals thiab dej los ntawm lawv cov hauv paus hniav, ntoo loj hlob. Kev yug me nyuam: Pollenand noob ua cov ntoo tshiab. Excretion: Ntoo tshem tawm pov tseg (oxygen)
Nov yog daim ntawv qhia tseeb ntawm lub ntuj tsim los ntawm hnub thiab qhov chaw koj muab. Koj tuaj yeem ua kom nws tshwj xeeb tshaj yog los ntawm kev ntxiv cov quotes thiab xaiv ib qho ntawm cov xim xim. Nws los ua ib daim ntawv tshaj tawm los yog npaj los luam cov ntaub ntawv digital. '
Yuav ua li cas siv cov cai ntawm kev sib txawv Hom kev ua haujlwm Daim ntawv muaj nuj nqi Txoj Cai y = tas li y = C dy / dx = 0 y = linear function y = ax + b dy / dx = ay = polynomial ntawm kev txiav txim 2 lossis siab dua y = axn + b dy/dx = anxn-1 y = sums or differents of 2 functions y = f(x) + g(x) dy/dx = f'(x) + g'(x)
Nqe 8 - LUB NEEJ NYOB HAUV LUB NTIAJ TEB. Cov qauv yooj yim tshaj plaws ntawm lub neej muaj xws li ib lub xovtooj ntawm tes. Tag nrho lwm yam muaj sia nyob yog tsim los ntawm ntau lub hlwb me me, ua ke hauv cov qauv tsim los tsim tag nrho lub cev. Cov kab mob unicellular muaj tsuas yog ib lub xov tooj me me xwb, uas tag nrho cov txheej txheem muaj sia nyob
Volume yog tus naj npawb ntawm cubic units uas ua kom muaj ib daim duab. Cov duab sib txawv yog qhia hauv qab no. Qhov ntim ntawm lub kaum sab xis tuaj yeem pom tau los ntawm kev suav cov lej ntawm cov cubic units lossis siv cov qauv. Cov mis rau kev nrhiav qhov ntim ntawm lub prism yog V = l x w x h
Lub mole yog tus nqi ntawm cov khoom uas muaj ntau yam (molecules, ions los yog atoms) raws li muaj nyob rau hauv 12g ntawm carbon. Tus lej no tau pom tias yog 6.02 x 10^23. Molar Mass (M) Tus lej sib npaug rau qhov txheeb ze molecular loj ntawm txhua lub caij hauv ib lub molecule. Siv g / mol ua chav tsev
Lub tsev qiv ntawv genomic yog ib phau ntawm tag nrho cov genomic DNA los ntawm ib lub cev. DNA yog khaws cia rau hauv cov pej xeem ntawm cov vectors zoo tib yam, txhua qhov muaj qhov sib txawv ntawm DNA. Tom qab ntawd cov fragments tau muab tso rau hauv vector siv DNA ligase
Yog li, kev ua haujlwm exponential nrog lub hauv paus tsis zoo, xws li tsis yog ntau ntawm kev ua haujlwm ntawm tag nrho (nws tsis tas li), vim nws tsuas tuaj yeem ntsuas ntawm qhov tshwj xeeb x-tus nqi. Nws yog vim li no uas peb tsuas yog xav txog logarithms nrog cov hauv paus zoo, vim cov hauv paus tsis zoo tsis tas mus li thiab feem ntau tsis muaj txiaj ntsig
Lub replication diav rawg yog ib tug qauv uas tsim nyob rau hauv lub helical DNA ntev thaum lub sij hawm DNA replication. Nws yog tsim los ntawm helicases, uas rhuav cov hydrogen bonds tuav ob DNA strands ua ke nyob rau hauv lub helix. Cov qauv tsim muaj ob ceg 'prongs', txhua tus ua los ntawm ib txoj hlua ntawm DNA
Lub ntsiab txhais ntawm tus kheej muaj yog hais txog ib yam dab tsi los yog ib tug neeg ua tiav ntawm nws tus kheej thiab qhov ntawd tsis xav tau lwm yam. Ib qho piv txwv ntawm tus kheej muaj yog ib tug neeg tag nrho nrog nws lub tuam txhab thiab tsis xav tau kev hlub, tuam txhab lossis kev txhawb nqa ntawm lwm tus
Alkenes hnov mob hauv qhov txias nrog cov kua ntshiab bromine, lossis nrog kev daws ntawm bromine hauv cov kuab tshuaj organic xws li tetrachloromethane. Qhov ob daim ntawv cog lus tawg, thiab ib qho bromine atom ua txuas rau txhua cov pa roj carbon. Cov bromine poob nws cov xim liab-xim av kom muab cov kua tsis muaj xim
Mount Konocti Hnub nyoog ntawm pob zeb Txog 350,000 xyoo Roob hom Lava dome Volcanic teb Clear Lake Volcanic Field Kawg eruption 11,000 xyoo dhau los
Zoo li cov ntoo xibtes yuav yog haiv neeg Arizona, tab sis cov ntoo xibtes tau coj los ntawm cov neeg tsiv teb tsaws chaw uas xav tau kev ceeb toom ntawm lawv cov tsev nyob hauv cheeb tsam sov. Cov xib teg tuaj ntawm Mexico, Southern California, Florida, Africa thiab Middle East. Tsis muaj leej twg nco txog tsob ntoo xibtes hauv thaj chaw ua ntej tib neeg pib coj lawv los ntawm no
Lub xovtooj ntawm electrochemical yog ib qho khoom siv uas tsim kom muaj qhov sib txawv ntawm cov electrodes siv tshuaj lom neeg. Galvanic cells thiab electrolytic cells yog cov piv txwv ntawm cov hlwb electrochemical
Kev Hloov Pauv Hloov Pauv. Tib neeg tab tom txav cov pa roj carbon ntau rau hauv huab cua los ntawm lwm qhov hauv ntiaj teb. Ntau cov pa roj carbon monoxide txav mus rau qhov chaw thaum cov fossil fuels, xws li thee thiab roj, raug hlawv. Cov pa roj carbon ntau tau txav mus rau qhov chaw thaum tib neeg tshem tawm hav zoov los ntawm kev hlawv cov ntoo