Ntawm nws txoj haujlwm tseem ceeb tshaj plaws, nyob rau hauv feem ntau cov chaw tsim hluav taws xob nuclear, cov dej kub tau nthuav tawm los ntawm cov raj hauv cov tshuab hluav taws xob, cia cov dej hauv cov tshuab hluav taws xob tig mus rau chav, uas tom qab ntawd tig lub tshuab hluav taws xob turbine thiab tsim hluav taws xob. Tom qab ntawd dej yog siv los ua kom txias lub chav thiab tig rov qab mus rau hauv dej
Ob txheej txheej feem ntau hu ua aqueous theem thiab theem organic. Rau cov kuab tshuaj sib zog dua dej (piv txwv li, qhov ntom 1) yuav tso rau hauv qab (Daim duab 1)
Nws yog tsim los ntawm kev sib xyaw loj ntim ntawm cov kua qaub tsis muaj zog lossis tsis muaj zog nrog nws cov conjugate puag lossis acid. Thaum koj ntxiv me me ntawm cov kua qaub lossis alkali (hauv paus) rau nws, nws cov pH tsis hloov pauv loj. Hauv lwm lo lus, cov tshuaj tsis txwv tsis pub cov kua qaub thiab lub hauv paus los ntawm kev sib xyaw ua ke
Txheej txheem Muab lub pob zeb geode rau hauv ib tug kws ntoo lub vise thiab siv lub pob zeb diamond txiav rau hauv ib nrab los ntawm sawing hauv nruab nrab. Qhwv cov saw hlau ntawm cov yeeb nkab hlau txiav nyob ib ncig ntawm lub geode thiab txuas rau ntawm qhov tseeb thais ntawm lub cuab yeej ua ntej thawb rau ntawm tus kov
Lub epicenter, epicenter (/ˈ?p?s?nt?r/) lossis epicentrum nyob rau hauv seismology yog lub ntsiab lus ntawm lub ntiaj teb nto ncaj qha saum lub hypocenter lossis tsom, qhov chaw uas av qeeg lossis tawg hauv av
Txhua lub caij ntuj no, spruce grouse noj spruce koob. Snowshoe hare noj koob, bark, thiab twigs, thiab nas thiab voles lub seedlings. Chipmunks, chickadees, nuthatches, crossbills, thiab Pine siskins noj cov noob. mos lwj muaj kev txaus siab me ntsis rau ib feem ntawm dawb spruce, tshwj tsis yog tias nws tiv thaiv lawv los ntawm cov daus sib sib zog nqus hauv deeryard
Qhov kev txiav txim ntawm convergence yog ib qho ntawm cov thawj txoj hauv kev los kwv yees tus nqi tiag tiag ntawm convergence, qhov ceev ntawm qhov yuam kev mus rau xoom. Feem ntau, qhov kev txiav txim ntawm convergence ntsuas tus cwj pwm asymptotic ntawm convergence, feem ntau mus txog qhov qub
Qhov ntom yog qhov loj ntawm ib qho khoom faib los ntawm nws qhov ntim. Qhov ceev feem ntau muaj units ntawm grams ib cubic centimeter (g / cm3). Nco ntsoov, grams yog qhov loj thiab cubic centimeters yog ib qhov ntim (qhov ntim tib yam li 1 milliliter)
Ecology CH 4 thiab 5 Jeopardy Review Teb Cov Ntsiab Lus Ua Si Qhov Kev Ua Si Rov Ua Si! #1 Cov roj twg ua rau 78 feem pua ntawm peb cov huab cua tab sis tuaj yeem siv los ntawm cov nroj tsuag tsuas yog thaum hloov los ntawm cov kab mob ua ntej? nitrogen #4 Dab tsi yog qhov dej loj ntawm nitrogen uas siv tsis tau los ntawm cov kab mob feem ntau? qhov cua
Yog li, nyob rau hauv poov tshuaj, lub sab nraud electron yog zoo dua shielded los ntawm lub zog txaus nyiam ntawm lub nucleus. Nws ua raws, yog li ntawd, cov hluav taws xob sab nraud no yooj yim dua ploj dua li nws nyob hauv sodium, yog li cov poov tshuaj tuaj yeem hloov mus rau hauv daim ntawv ionic ntau dua li sodium. Yog li ntawd, poov tshuaj yog ntau reactive tshaj sodium
Cov tshuaj tiv thaiv exothermic yog cov tshuaj tiv thaiv uas tso tawm lub zog los ntawm lub teeb lossis cua sov. Nws yog qhov rov qab ntawm cov tshuaj tiv thaiv endothermic. Qhia tawm hauv kev sib npaug tshuaj: reactants → khoom + lub zog
Ib qho kev sib raug zoo tsis zoo txhais tau hais tias muaj kev sib cuam tshuam ntawm ob qhov sib txawv - thaum ib qho kev sib txawv tsawg, lwm qhov nce ntxiv
VIDEO Ib sab ntawm qhov no, koj pom P thiab Q li cas hauv Hardy Weinberg? Txij li thaum p = 1 - q thiab q paub, nws yog ua tau xam p ib yam nkaus. Paub p thiab q , nws yog ib qho yooj yim teeb meem rau ntsaws cov nqi no rau hauv Hardy - Weinberg equation (p² + 2pq + q² = 1).
Meiosis yog txheej txheem uas ib lub xov tooj sib faib ob zaug los tsim plaub lub hlwb uas muaj ib nrab ntawm cov ntaub ntawv keeb kwm yav dhau los. Cov hlwb no yog peb cov poj niam cev xeeb tub - phev hauv txiv neej, qe hauv poj niam. Thaum lub sij hawm meiosis ib cell? faib ob zaug los tsim plaub lub hlwb
Eukaryotic gene qhia tuaj yeem tswj tau ntawm ntau theem Chromatin nkag tau. Cov qauv ntawm chromatin (DNA thiab nws cov txheej txheem proteins) tuaj yeem tswj tau. Kev sau ntawv. Kev hloov pauv yog lub ntsiab lus tseem ceeb ntawm kev tswj hwm rau ntau cov noob. Kev ua haujlwm RNA
Provenance yog reconstruction ntawm lub hauv paus chiv keeb ntawm sediments. Tag nrho cov pob zeb nthuav tawm ntawm lub ntiaj teb saum npoo yog raug rau lub cev los yog tshuaj lom neeg huab cua thiab tawg mus rau hauv cov hmoov nplej zoo dua. Tag nrho peb hom pob zeb (igneous, sedimentary thiab metamorphic pob zeb) tuaj yeem yog qhov chaw ntawm sedimentary detritus
Duplication yog ib hom kev hloov pauv uas suav nrog kev tsim ib lossis ntau daim ntawv theej ntawm cov noob lossis thaj tsam ntawm chromosome. Gene thiab chromosome duplications tshwm sim nyob rau hauv tag nrho cov kab mob, txawm hais tias lawv yog tshwj xeeb tshaj yog tseem ceeb ntawm cov nroj tsuag. Gene duplication yog ib qho tseem ceeb mechanism uas evolution tshwm sim
Orbits: Hnub
Muaj ntau hom invasive vam meej vim lawv sib tw hom haiv neeg rau zaub mov. Cov kab mob kis tau qee zaum vam meej vim tias tsis muaj cov tsiaj txhu uas tua lawv hauv qhov chaw tshiab. Brown tsob ntoo nab tau raug coj mus rau Guam, ib kob nyob rau sab qab teb Pacific, thaum xyoo 1940s lossis thaum ntxov 1950s
Yog li pizza tsis yog qhov sib xyaw. Nws yog qhov sib xyaw ntawm ntau yam xws li khob noom cookie, ntses, nqaij, veggies, cheese, thiab lwm yam thiab txhua yam ntawm cov khoom no yog sib xyaw ntawm lwm yam xws li cov protein, starches, qab zib, dej, fiber, vitamins, minerals, thiab lwm yam
Cov ntsiab lus tseem ceeb Kev siab hauv cov kua tsuas yog nyob ntawm qhov ntom ntawm cov kua, qhov nrawm vim lub ntiajteb txawj nqus, thiab qhov tob hauv cov kua. Lub siab exerted los ntawm xws li ib tug static kua nce linearly nrog nce qhov tob
Cov dej sib txawv li cas hauv qab nws qhov melting point thiab saum nws? Hauv qab no nws nyob ze ua ke thiab lawv thaws tawm ntawm ib leeg. Saum toj no cov molecules tau txawm ze dua li hauv qab no. Lub boiling / condensation point ntawm dej yog 373K
Classification of Matter-Elements, Mixtures and Compounds A B Heterogeneous Mixture Ib daim ntawm pepperoni pizza yog ib qho piv txwv ntawm. Homogeneous Mixture Ib qho sib tov uas zoo nkaus li zoo ib yam thoob plaws hauv Homogeneous Mixture Kuj hu ua kev daws Colloid Cov khoom ntawm cov sib tov no me me heev thiab tsis nyob
Monoatomic (monatomic): Ib lub molecule tsim ntawm ib lub atom, thiab tsis muaj covalent bonds. Noble gases (Nws, Ne, Ar, Kr, Xe, thiab Rn) yog tag nrho cov monoatomic, whereas feem ntau gases yog tsawg kawg yog diatomic
Kev nyab xeeb. 'Lub Plains sab hauv muaj ntev, lub caij ntuj no txias thiab luv luv, kub lub caij ntuj sov.' (Lub Plains sab hauv p. 8). Lub caij ntuj no nyob rau sab hauv Plains tuaj yeem mus qis li -30 ° C, thiab lub caij ntuj sov siab tshaj 30 ° C (Lub Sab Hauv Plains p
Lub zog ntawm kev txhaum, cos thiab tancan raug xam raws li hauv qab no: Sine Function: sin(θ) = Opposite / Hypotenuse. CosineFunction: cos(θ) = Adjacent / Hypotenuse.Tangent Function: tan(θ) = Nkaum /Adjacent
Cog Respiration Thiab Photosynthesis Formula Cov nroj tsuag ua pa txhua lub sijhawm, nruab hnub thiab hmo ntuj. Tab sis photosynthesis tsuas yog tshwm sim thaum nruab hnub thaum muaj hnub ci. Nyob ntawm seb lub hnub ci npaum li cas, cov nroj tsuag tuaj yeem muab tawm lossis nqa cov pa oxygen thiab carbon dioxide raws li hauv qab no?1?. Tsaus - Tsuas yog ua pa xwb
Ob lub kaum sab nrauv sab nrauv rau cov kab sib txuas thiab ntawm tib sab ntawm txoj kab transversal yog hu ua tib-sab sab nrauv cov ces kaum. Lub theorem hais tias tib lub sab sab nrauv lub kaum sab xis yog ntxiv, txhais tau tias lawv muaj qhov sib npaug ntawm 180 degrees
Ua ntej: cov coefficients muab cov naj npawb ntawm cov molecules (los yog atoms) koom nrog cov tshuaj tiv thaiv. Hauv qhov piv txwv cov tshuaj tiv thaiv, ob lub molecules ntawm hydrogen react nrog ib molecule ntawm oxygen thiab tsim ob molecules ntawm dej. Thib ob: cov coefficients muab tus naj npawb ntawm moles ntawm txhua yam tshuaj koom nrog hauv cov tshuaj tiv thaiv
Cov Npe Tshawb Fawb Cov kws tshawb fawb npe cov tsiaj txhu thiab cov nroj tsuag siv cov kab ke uas piav qhia txog cov genus thiab hom kab mob. Thawj lo lus yog genus thiab qhov thib ob yog hom. Thawj lo lus yog capitalized thiab thib ob tsis yog. Lub npe binomial txhais tau hais tias nws tau ua los ntawm ob lo lus (bi-nomial)
Lub peev xwm faib tawm yog ib qho yooj yim Circuit Court uas siv cov resisters (los yog thermistors / LDR's) los muab qhov sib txawv muaj peev xwm sib txawv. Lawv tuaj yeem siv los ua audiovolume tswj, tswj qhov kub thiab txias hauv lub freezer lossis kev saib xyuas kev hloov hauv lub teeb hauv chav
Lub zog ua kom muaj zog yog lub zog uas yuav tsum tau nqus kom muaj tshuaj lom neeg pib. Thaum lub zog ua kom txaus ntxiv rau cov reactants, cov ntawv cog lus hauv cov reactants tawg thiab cov tshuaj tiv thaiv pib
Tshuaj Fertilizers Hom: 3 Hom Tshuaj Fertilizers Nitrogenous Fertilizers: ADVERTISEMENTS: Phosphate Fertilizers: Tom ntej no mus rau nitrogen, phosphorus yog lub feem ntau tsis txaus lub ntsiab nutrient keeb nyob rau hauv Indian av: Potassic Fertilizers: Chief coj mus muag sawv daws yog Potassium 5 0% sulphate. muriate ntawm potash (60% K2O)
Tus xoom xoom yog sib npaug rau 0 ° K, − 459.67 ° F, lossis − 273.15 ° C. Thaum qhov kub thiab txias nce mus txog xoom, cov yam ntxwv ntawm lub cev ntawm qee yam khoom hloov pauv loj heev. Piv txwv li, qee yam khoom hloov pauv ntawm cov hluav taws xob hluav taws xob mus rau cov khoom siv hluav taws xob, thaum lwm tus hloov los ntawm cov hluav taws xob mus rau cov hluav taws xob
Net ionic equation yog: H + (aq) + OH–(aq) → H2O(l) Nco ntsoov tias thaum dej koom nrog cov tshuaj tiv thaiv aqueous, nws ib txwm sau H2O(l), tsis yog H2O(aq)
Txoj kev loj hlob creosote nroj tsuag yuav tsum tau soaking noob nyob rau hauv boiling dej kom tawg los ntawm cov noob hnyav lub tsho tiv no. Soak lawv rau ib hnub thiab tom qab ntawd cog ib lub noob rau 2-nti lub lauj kaub. Khaws cov noob maj mam moist kom txog thaum germination. Tom qab ntawd txav lawv mus rau qhov chaw sov, tshav ntuj thiab loj hlob mus txog thaum muaj tag nrho cov hauv paus hniav
Piv txwv ntawm Allotropes Txhawm rau txuas ntxiv cov piv txwv ntawm cov pa roj carbon monoxide, indiamond, cov pa roj carbon atoms tau sib koom ua ke los ua ib qho tetrahedrallattice. Hauv graphite, cov atoms daim ntawv cog lus rau daim ntawv ntawm ahexagonal lattice. Lwm cov allotropes ntawm carbon muaj xws ligraphene thiab fullerenes. O2 thiab ozone, O3, yog allotropes ntawm oxygen
Qhov tshwm sim uas tso cai rau oobleck ua qhov nws ua yog hu ua "shear thickening," ib txheej txheem uas tshwm sim hauv cov ntaub ntawv uas ua los ntawm cov khoom siv microscopic raug tshem tawm hauv cov kua dej. Piv txwv suav nrog cov av nkos siv hauv cov roj qhov dej thiab cov kua dej siv rau ob peb lub tsheb xa mus rau lub log
Cov ntsiab lus suav nrog hauv pawg no suav nrog beryllium, magnesium, calcium, strontium, barium thiab radium. Lub cev muaj zog: Lub cev lub cev: Atomic Volume thiab Radius: Ceev: Melting thiab Boiling Points: Ionization Zog: Oxidation State: Electropositivity: Electronegativity:
Lub ticker daim kab xev timer ua haujlwm los ntawm kev ua cov dots ntawm daim kab xev ntawm lub sijhawm sib npaug (kwv yees txhua 0.1s hauv qhov kev sim no). Nws yog ib txoj hauv kev zoo tshaj plaws rau cov tub ntxhais kawm physics pib kom paub txog kev ntsuas kev txav. Cov menyuam kawm ntawv yuav sau thiab teev cov lus tsa suab ntawm lub tsheb uas txav mus tas li