Kub - yog ib qho ntxhia vim nws tshwm sim. Ntoo - tsis suav hais tias yog pob zeb hauv av vim nws cov khoom siv organic. Raws li cov ntsiab lus ntawm cov ntxhia, cov ntaub ntawv twg hauv qab no tsis raug cais raws li cov zaub mov thiab vim li cas, kub, dej, hluavtaws pob zeb diamond, dej khov, thiab ntoo
Lub ntsiab lus ntawm lub zog thiab lub zog zoo li qhia cov ntsiab lus zoo sib xws thiab feem ntau tsis meej pem rau ib leeg. Butin physics, lawv tsis hloov pauv. Kev quab yuam yog qhov tseem ceeb ntawm kev sib cuam tshuam ntawm ob yam khoom, thaum lub zog yog qhov kev qhia ntawm lub zog siv sijhawm dhau sijhawm (ua haujlwm), uas lub zog yog anelement
Position-effect variegation (PEV) tshwm sim thaum cov noob ib txwm nyob hauv euchromatin yog sib xyaw nrog heterochromatin los ntawm kev hloov kho lossis hloov pauv. Thaum lub ntim ntim heterochromatin kis thoob plaws heterochromatin / euchromatin ciam teb, nws ua rau kev hloov pauv ntawm kev ntsiag to hauv tus qauv stochastic
Pem teb thiab Ntau Cov Xim uas ua haujlwm nrog cov ntoo thuv, tshwj xeeb tshaj yog nrog cov txiv kab ntxwv undertones, yog xiav thiab ntsuab. Cov xim sov xim liab thiab daj yuav ua haujlwm - tab sis yuav tsum tau siv me me. Cov chav nrog ob lub pob zeb ntoo ntoo thiab cov plag tsev yuav tsum tau dai kom zoo nkauj kom cov ntoo ci
Ionic bonding yog kev hloov pauv tag nrho ntawm valence electron (s) ntawm atoms. Nws yog ib hom tshuaj lom neeg daim ntawv cog lus uas ua rau ob qho tib si tiv thaiv ions. Nyob rau hauv ionic bonds, cov hlau poob electrons los ua ib tug zoo them cation, whereas lub nonmetal txais cov electrons los ua ib tug tsis zoo nqi anion
Peb hom protists yog protozoa, algae thiab fungus zoo li protists. Cov hom no tsis raug categorized raws li lawv tau txais kev noj haus. Tag nrho cov protists yog eukaryotes. Protists tuaj yeem yog unicellular, colonial lossis multicellular
Reactivity ces yog hais txog tus nqi ntawm cov tshuaj lom neeg muaj feem cuam tshuam rau cov tshuaj tiv thaiv hauv lub sijhawm. Hauv cov tebchaw ntshiab, reactivity yog tswj los ntawm lub cev ntawm cov qauv. Piv txwv li, kev sib tsoo ib qho piv txwv mus rau qhov chaw siab dua ntawm qhov chaw ua rau nws cov reactivity
Hydrogen muaj tus nqi ntawm +1 thiab txij li Hydrogen muaj subscript ntawm 2 tus nqi hloov mus rau +2. Txhawm rau nrhiav S lossis sulfur tsub koj tuaj yeem saib ntawm lub rooj zaum thiab pom nws yog nyob rau hauv 16 kem (uas txhais tau tias nws yog -2) lossis nkag siab tias txij li H2S yog daim ntawv cog lus cov nqi them yuav tsum tau tshem tawm ib leeg
Kab segments yog congruent yog tias lawv muaj tib qhov ntev. Txawm li cas los xij, lawv yuav tsum tsis txhob sib npaug. Lawv tuaj yeem nyob ntawm txhua lub kaum sab xis lossis kev taw qhia ntawm lub dav hlau. Koj tuaj yeem hais tias 'qhov ntev ntawm kab AB sib npaug ntawm kab PQ'
Piv txwv li: Txuas ntxiv nrog cov electrolysis ntawm dej, peb muaj ib qho kev sib npaug ntawm cov pob txha, '' Cov mis rau dej yog H2O; cov mis rau hydrogen yog H2; thiab cov mis rau oxygen yog O2. Lub cev sib npaug tsuas yog ib txoj hauv kev siv cov qauv los qhia cov tshuaj uas tau koom nrog hauv cov tshuaj tiv thaiv
Kev hloov tshuaj lom neeg tshwm sim los ntawm cov tshuaj tiv thaiv tshuaj, thaum lub cev hloov pauv yog thaum cov teeb meem hloov pauv tab sis tsis yog tshuaj lom neeg. Piv txwv ntawm kev hloov tshuaj lom neeg yog hlawv, ua noj, xeb, thiab rotting. Piv txwv ntawm kev hloov lub cev yog boiling, melting, khov, thiab shredding
Lub sijhawm tseem ceeb xws li: electronegativity, ionization zog, electron affinity, atomic radius, melting point, thiab metallic cim. Periodic tiam sis, tshwm sim los ntawm qhov kev npaj ntawm lub sij hawm lub sij hawm, muab chemists nrog ib tug invaluable cuab tam kom sai sai kwv yees ib tug yam ntxwv lub zog
Cov ntaub ntawv topographic yog cov ntaub ntawv hais txog qhov nce ntawm qhov chaw ntawm lub ntiaj teb. Ob hom ntaub ntawv no feem ntau siv nrog GeoPads. Thawj yog cov ntaub ntawv uas sawv cev rau cov ntaub ntawv feem ntau pom nyob rau hauv daim ntawv qhia saum toj kawg nkaus quadrangle, xws li kab contour, txoj kev, kwj deg, railroads, nroog, thiab lwm yam
Bioaccumulation tshwm sim nyob rau hauv ib theem trophic, thiab yog qhov nce hauv cov ntsiab lus ntawm cov khoom hauv qee cov ntaub so ntswg ntawm cov kab mob hauv lub cev vim kev nqus los ntawm cov zaub mov thiab ib puag ncig. Yog li, bioconcentration thiab bioaccumulation tshwm sim nyob rau hauv ib tug kab mob, thiab biomagnification tshwm sim nyob rau hauv trophic (cov khoom noj saw) qib
Lawv ua li cas? Lub hli pob zeb yog tsim los ntawm kev noj ib tug nugget ntawm cov yeeb tshuaj xas thiab dipping rau hauv los yog txau nrog concentrate, los yog hash roj. Lawv feem ntau ua nrog Ntxhais Scout ncuav qab zib (cov nroj tsuag, tsis yog nyias Mints) paj thiab mloog zoo, tab sis tuaj yeem ua nrog txhua hom. Tom qab ntawd lub coated nugget yog dov rau hauv kief
Thaum ib qho phenotype tsim los ntawm qee cov alleles pab cov kab mob muaj sia nyob thiab rov tsim dua zoo dua li lawv cov phooj ywg, kev xaiv ntuj tuaj yeem ua rau ntau zaus ntawm cov alleles pab tau los ntawm ib tiam mus rau lwm tiam - uas yog, nws tuaj yeem ua rau microevolution
Tag nrho cov phaj ciam teb yog powered los ntawm convection tam sim no thiab lawv tag nrho cov av qeeg. Piav seb cov convection tam sim no yuav ua rau cov phaj tectonics. Tej zaum lawv yuav yog vim li cas qhov kev txav ntawm daim hlau thawb cov phaj txav mus. Lub zog yog txias, dab dej, ua kom sov, thiab nce
DB, (deciBels), yog qhov ntsuas ntawm cov txheeb ze nce hauv _VOLTAGE_. Xav txog nws hais tias lub amp nce qhov voltage los ntawm 2x. Koj txhais tau tib yam thaum koj muaj qhov nce +3dB. SPL yog lub suab siab
Cov kab lus palatable Piv txwv Tus snapper yog ib zaug zoo nkauj tshaj plaws thiab palatable ntawm ntau hom ntses hiav txwv. Nws cov nqaij yog palatable txawm hais tias xav tau rog, thaum nws daim tawv nqaij ua cov khaub ncaws tseem ceeb ntawm Patagonians. loj.) Cov nqaij yog khoom kim heev los ntawm haiv neeg, thiab yog palatable rau Europeans
Nyob rau hauv atoms, muaj tag nrho ntawm plaub quantum tooj: tus thawj quantum tooj (n), lub orbital angular momentum quantum tooj (l), lub magnetic quantum tooj (ml), thiab lub electron spin quantum tooj (ms). Hauv lwm lo lus, nws hais txog qhov loj ntawm lub orbital thiab lub zog theem ntawm electron muab tso rau hauv
Cov cim zoo thiab qhov tsis zoo sawv cev rau DIRECTION ntawm daim nyias nyias. Vim tias sodium gradient raug coj mus rau hauv lub cell, nws cov peev xwm sib npaug yuav tsum yog POSITIVE los tsav sodium OUT. Potassium muaj qhov REVERSE concentration gradient, yog li NEGATIVE equilibrium muaj peev xwm
Ob yam uas txiav txim siab seb cov khoom puas yog ib qho khoom, kua, lossis roj: Lub zog kinetic ntawm cov khoom (atoms, molecules, lossis ions) uas tsim cov asubstance. Kinetic zog nyiam ua kom cov khoom txav sib nrug. Qhov txaus nyiam sib cuam tshuam cov rog ntawm cov khoom uas nyiam kos cov khoom ua ke
1 Cov kws tshawb fawb thiab cov kws tshawb nrhiav kev ua txhaum cai siv ntau yam kev tshuaj ntsuam xyuas los txiav txim seb hom accelerants siv los pib hluav taws. Hauv chav kuaj no, koj yuav siv cov roj chromatography (GC) los txiav txim seb qhov muaj pes tsawg leeg thiab / lossis cov qauv ntawm cov khoom siv hluav taws xob siv los ua qhov nrawm pom ntawm qhov chaw ua txhaum cai
Teb: Peb qhov tsis sib xws tau dashed ciam teb. thib peb tsis sib xws muab dashed kab ciam teb
Fusion yog lub zog ntawm lub hnub thiab hnub qub. Hauv fusion, ob lub teeb nuclei (xws li hydrogen) ua ke rau hauv ib lub nucleus tshiab (xws li helium) thiab tso tawm lub zog loj hauv cov txheej txheem. Nyob rau hauv lub ntiaj teb no, fusion muaj peev xwm ua tau ib tug ntau thiab txaus nyiam qhov chaw ntawm lub zog rau yav tom ntej
Sab saum toj 10 cov lus zoo sib xws lossis cov lus sib txuas rau protostar fomalhaut 0.746405. cov protostellar 0.739624. PIB 0.724218. PIB 0.711815
Qhov tseeb, nws yog av: Yuav luag txhua hom xuab zeb, av nplaum thiab pob zeb muaj silica nyob rau hauv ib daim ntawv los yog lwm yam, thiab tag nrho ntau tshaj li ib nrab ntawm lub ntiaj teb crust yog ua los ntawm silica. Kev lag luam, silica tau hloov mus rau silicon ntshiab los ntawm cua sov nrog coke (daim ntawv ntawm cov thee, tsis yog dej haus) hauv qhov cub
Lub hauv paus ntawm DNA Txhua lub hauv paus no feem ntau sau ib tsab ntawv: A (adenine), C (cytosine), G (guanine), T (thymine). Cov hauv paus tuaj hauv ob pawg: thymine thiab cytosine yog pyrimidines, thaum adenine thiab guanine yog purines ()
Lub voj voog pob zeb yog ib feem ntawm lithosphere thiab nws piav qhia txog yuav ua li cas pob zeb hloov ntawm ib daim ntawv mus rau lwm qhov thiab nws thiaj li rov qab mus rau thawj daim ntawv
Ntu 1 Ua Kev Xeem Qhia Txog Pob Zeb thiab pob zeb sib nrug. Nkag siab txog kev txheeb xyuas cov ntxhia. Tshawb xyuas cov duab thiab qhov chaw ntawm cov mineral. Saib ntawm koj cov pob zeb ci ci, lossis luster. Ua tib zoo saib cov ntxhia hauv cov xim. Ua ib qho kev xeem streak. Ntsuas cov khoom hardness. Tso cov pob zeb hauv av thiab saib seb nws los sib nrug li cas
Huab cua: Cheebtsam thiab yam ntxwv ntawm lub ntiaj teb Atmosphere. Muab xam raws li lawv cov txheeb ze ntim, cov gaseous constituents ntawm cov cua yog nitrogen, 78.09%; oxygen, 20.95%; argon yog '0.93%; carbon dioxide 0.03%; thiab feeb ib kab ntawm neon, helium, methane, krypton, hydrogen, xenon, thiab ozone
Lub Ntiaj Teb Radiation Budget. Lub zog nkag mus, xav txog, nqus, thiab tawm los ntawm lub ntiaj teb yog cov khoom siv hluav taws xob hluav taws xob hauv ntiaj teb
Qhov txawv: -- Mosses yog cov nroj tsuag uas tsis muaj vascular; ferns yog vascular. - Gametophyte yog lub cim tseem ceeb hauv mosses; sporophyte yog lub cim tseem ceeb hauv ferns. - Mosses muaj cov txiv neej thiab poj niam sib cais gametophytes; fern gametophytes muaj txiv neej thiab poj niam qhov chaw ntawm tib tsob nroj
Vim hais tias tus sau hais txog cov txheej txheem ntawm qhov muaj peev xwm nkag tau, lub npe ntawm ib daim duab muaj tag nrho cov input qhov tseem ceeb qhia ntawm x-axis. Qhov ntau yog cov txheej txheem ntawm cov txiaj ntsig tau tso tawm, uas tau pom ntawm y-axis
Hauv kev ua lej, ntim tuaj yeem txhais tau tias yog qhov chaw 3-dimensional kaw los ntawm ib thaj tsam lossis nyob ntawm ib qho khoom. Ntawm no, cov blocks thiab phau ntawv siv qhov chaw. Ntawm no, piv txwv li, qhov ntim ntawm lub cuboid los yog lub kaum sab xis prism, nrog rau chav tsev cubes tau txiav txim siab nyob rau hauv cubic units
Ib tug tib neeg lub siab cell muaj ob pawg ntawm 23 chromosomes, txhua pawg yog kwv yees sib npaug ntawm cov ntaub ntawv cov ntsiab lus. Tag nrho cov DNA muaj nyob rau hauv cov 46 enormous DNA molecules yog 4 x 1012 daltons
Ntawm qhov siab ntawm txhua qhov sib nqus sib nqus, lub hnub dhau los ntawm lub sijhawm ntau lub hnub ci, thaum lub sijhawm muaj ntau lub hnub ci, thiab cov xwm txheej tshwm sim ntau dua xws li hnub ci flares thiab coronal loj ejections, lossis CMEs. Lub ntsiab lus nyob rau hauv lub sij hawm nrog feem ntau sunspots yog hu ua hnub ci siab tshaj plaws
Cov qauv piv txwv yog feem ntawm cov qauv uas tau ua tiav, yog li. (1) Rau loj, muaj kwv yees li ib txwm faib
Qhov kev txwv yog tias tus denominator tsis tuaj yeem sib npaug rau xoom. Yog li hauv qhov teeb meem no, txij li 4x yog nyob rau hauv tus lej nws tsis tuaj yeem sib npaug zero. Txhawm rau nrhiav cov kev txwv ntawm kev ua kom muaj nuj nqis, nrhiav qhov tseem ceeb ntawm qhov sib txawv uas ua rau tus lej sib npaug 0
Ib tug yam ntxwv uas pab ib tug kab mob ciaj sia thiab yug dua tshiab nyob rau hauv nws tej yam ntuj tso ib puag ncig. Hloov pauv hauv cov kab mob uas tshwm sim thaum DNA puas lossis hloov pauv. natural xaiv. Cov txheej txheem los ntawm cov kab mob uas zoo tshaj plaws yoog rau lawv ib puag ncig muaj sia nyob & rov tsim dua kom dhau los ntawm cov txiaj ntsig zoo rau lawv cov xeeb ntxwv