Muaj ntau ntau yam tshwm sim purines. Lawv suav nrog nucleobases adenine (2) thiab guanine (3). Hauv DNA, cov hauv paus no tsim cov ntawv cog lus hydrogen nrog lawv cov pyrimidines ntxiv, thymine thiab cytosine, feem. Hauv RNA, qhov sib ntxiv ntawm adenine yog uracil tsis yog thymine. Kawg hloov kho: 2023-12-15 23:12
Oxygen yog cov khoom muaj ntau tshaj plaws hauv ntiaj teb thiab hauv tib neeg. Kev nplua nuj ntawm cov ntsiab lus uas tsim cov organic tebchaw nce hauv tib neeg thaum qhov kev nplua nuj ntawm metalloids nce hauv ntiaj teb. Cov ntsiab lus uas muaj ntau hauv ntiaj teb yog qhov tseem ceeb los txhawb txoj sia. Kawg hloov kho: 2023-12-15 23:12
Ib daim ntawv cog lus hydrogen yog lub electromagnetic attraction ntawm polar molecules nyob rau hauv uas hydrogen yog khi rau ib tug loj atom, xws li oxygen los yog nitrogen. Qhov no tsis yog kev sib koom ntawm cov hluav taws xob, xws li hauv daim ntawv cog lus. Hloov chaw, qhov no yog qhov kev nyiam ntawm qhov zoo thiab qhov tsis zoo ntawm cov atom raug nqi. Kawg hloov kho: 2023-12-15 23:12
Thaum huab cua tsis kam ua, acceleration thaum lub caij nplooj zeeg yuav tsawg dua g vim huab cua tsis kam cuam tshuam rau kev txav ntawm cov khoom ntog los ntawm kev ua kom qeeb. Huab cua kuj nyob ntawm ob yam tseem ceeb - qhov ceev ntawm cov khoom thiab nws qhov chaw nto. Ua kom qhov chaw saum npoo ntawm ib qho khoom txo nws qhov ceev. Kawg hloov kho: 2023-12-15 23:12
1 Piav qhia lub luag haujlwm ntawm lub tsev cog khoom roj hauv kev tswj xyuas qhov ntsuas kub ntawm lub ntiaj teb. Tsev cog khoom gases nqus cov hluav taws xob hluav taws xob hluav taws xob los ntawm lub ntiaj teb saum npoo av thiab dhau qhov cua sov no mus rau lwm cov pa hauv huab cua. Lub hnub ci hluav taws xob tuaj yog tsim los ntawm pom lub teeb, ultraviolet lub teeb, thiab kub infrared. Kawg hloov kho: 2023-12-15 23:12
Sau npe. Ib lub tsev UK feem ntau muaj 60 txog 100Amp cov khoom siv fuse, tsis yog txhua lub tsev nyob hauv txoj kev tuaj yeem kos ntau ib txhij. Txawm tias tam sim no koj lub installer yuav tsum tsis txhob nruab ib lub 32 Amp charger ntawm 60 Amp mov yog tias koj twb muaj 40 Amp da dej li koj yuav overload cov khoom yog tias koj khiav ob qho tib si ua ke. Kawg hloov kho: 2023-12-15 23:12
Shrublands yog cov cheeb tsam uas nyob rau sab hnub poob ntug dej hiav txwv ntawm 30 ° thiab 40 ° North thiab South latitude. Qee qhov chaw yuav suav nrog yav qab teb California, Chile, Mexico, thaj chaw nyob ib puag ncig hiav txwv Mediterranean, thiab sab hnub poob ntawm Africa thiab Australia. Kawg hloov kho: 2023-12-15 23:12
Cov neeg ua haujlwm txo qis tuaj yeem suav nrog kev ua kom muaj zog los ntawm kev txheeb xyuas lawv cov peev xwm txo qis. Tus neeg sawv cev txo qis muaj zog dua thaum nws muaj peev xwm txo qis dua thiab tsis muaj zog thaum nws muaj peev xwm txo qis dua. Kawg hloov kho: 2023-12-15 23:12
Protein yog sib sau ua ke hauv cov hlwb los ntawm ib qho organelle hu ua ribosome. Ribosomes muaj nyob rau hauv txhua hom cell loj thiab yog qhov chaw ntawm cov protein synthesis. Kawg hloov kho: 2023-12-15 23:12
Sulfuric Acid (H2SO4) yog siv rau hauv cov txheej txheem redox titration vim nws muab H(+) ions tsim nyog rau cov tshuaj tiv thaiv kom tshwm sim sai dua thaum cov sulphate (-) ions NW nyuam qhuav tshwm sim thaum cov tshuaj tiv thaiv. Yog li ntawd, sulfuric acid yog ntxiv los ua kom cov kua qaub acidic. Kawg hloov kho: 2023-12-15 23:12
Molecular Geometry A B Cov duab ntawm O2 yog dab tsi? linear PH3 yog dab tsi? Trigonal pyramidal HClO yog dab tsi? khoov N2 zoo li cas? kab tawm. Kawg hloov kho: 2023-12-15 23:12
Lichens tau noj los ntawm ntau cov kab mob me me, suav nrog hom bristletails (Thysanura), springtails (Collembola), termites (Isoptera), psocids los yog barklice (Psocoptera), grasshoppers (Orthoptera), snails thiab slugs (Mollusca), web-spinnerera (Embioptera). ), butterflies thiab npauj (Lepidoptera) thiab mites (Acari). Kawg hloov kho: 2023-12-15 23:12
Hauv kev ua lej, ib txheej yog ib qho kev sau zoo ntawm cov khoom sib txawv, suav tias yog ib qho khoom hauv nws tus kheej. Piv txwv li, cov lej 2, 4, thiab 6 yog cov khoom sib txawv thaum txiav txim siab sib cais, tab sis thaum lawv suav tias suav nrog lawv tsim ib pawg loj peb, sau{2, 4, 6}. Kawg hloov kho: 2023-12-15 23:12
Cov duab kaw uas muaj ib nrab lub voj voog thiab ib txoj kab uas hla ntawm lub voj voog *. Ib lub voj voog yog ib nrab lub voj voog, tsim los ntawm kev txiav tag nrho lub voj voog raws kab kab, raws li qhia saum toj no. Txhua txoj kab uas hla ntawm ib lub voj voog txiav nws mus rau hauv ob qho tib si semicircles. * Lwm lub ntsiab txhais yog tias nws yog qhib arc. Kawg hloov kho: 2023-12-15 23:12
Mitochondria muaj nyob rau hauv cov hlwb ntawm txhua hom kab mob aerobic zoo li cov nroj tsuag thiab tsiaj txhu, thaum Chloroplast muaj nyob rau hauv cov nroj tsuag ntsuab thiab qee cov algae, protists zoo li Euglena. Lub puab txheej ntawm mitochondria yog folded rau hauv cristae thaum lub chloroplast, nce mus rau hauv flattened hnab hu ua thylakoids. Kawg hloov kho: 2023-12-15 23:12
Wolf-Hirschhorn syndrome yog ib yam mob uas cuam tshuam rau ntau qhov chaw ntawm lub cev. Cov yam ntxwv tseem ceeb ntawm tus kab mob no muaj xws li lub ntsej muag lub ntsej muag, ncua kev loj hlob thiab kev loj hlob, kev txawj ntse, thiab qaug dab peg. Kawg hloov kho: 2023-12-15 23:12
Lub sijhawm teem sijhawm tau txais plaub qhov kev ua haujlwm tshiab ntxiv. Nihonium, Moscovium, Tennessine thiab Oganesson yog officially official. Lub lim tiam no, International Union ntawm Pure and Applied Chemistry tau ntxiv cov lej 113, 115, 117 thiab 118 rau Lub Sijhawm lub sijhawm ntawm cov ntsiab lus (114 thiab 116 - Livermorium thiab Flerovium - tau ntxiv rau xyoo 2012). Kawg hloov kho: 2023-12-15 23:12
Lub ntsiab lus. DAL. Kev tsaus ntuj thiab lub teeb (kev ua si) qhia tsuas yog Slang/Internet Slang txhais (qhia tag nrho 38 txhais). Kawg hloov kho: 2023-12-15 23:12
Lub teb chaws xws li CAMBODIA, BANGLADESH, thiab feem ntau ntawm Sub-Saharan Africa yog cov piv txwv ntawm thaj chaw, qhov chaw siv tshuab yooj yim, siv zog ua haujlwm, kev ua haujlwm qis, thiab kev ua haujlwm tau nyiaj tsawg. Cov no yog cov dav dav dav dav thiab hauv ib lub tebchaws tuaj yeem muaj cov txheej txheem tseem ceeb thiab thaj chaw ntawm cov txheej txheem peripheral. Kawg hloov kho: 2023-12-15 23:12
Lub tertiary qauv ntawm ib tug protein yog peb seem ntawm cov protein. Disulfide bonds, hydrogen bonds, ionic bonds, thiab hydrophobic kev sib cuam tshuam tag nrho cov cuam tshuam rau cov qauv ntawm cov protein. Kawg hloov kho: 2023-12-15 23:12
Kwv yees li 4 mus rau 5 lub teeb xyoo. Kawg hloov kho: 2023-12-15 23:12
Ob lub cubes thiab cuboids muaj rau lub ntsej muag, 12 edges thiab yim vertices, los yog fab. Txhua ntug yog sib koom los ntawm ob lub ntsej muag. Ntawm txhua qhov vertex, peb lub ntsej muag koom ua ke. Kawg hloov kho: 2023-12-15 23:12
Ib 50a85km. Kawg hloov kho: 2023-12-15 23:12
Qhov sib txawv loj ntawm chemistry thiab chemical engineering yuav tsum tau ua nrog cov originality thiab scale.Chemists feem ntau yuav tsim cov ntaub ntawv tshiab thiab cov txheej txheem, thaum cov kws ua haujlwm chemical feem ntau yuav coj cov ntaub ntawv thiab cov txheej txheem thiab ua rau lawv loj dua lossis ntau dua. Kawg hloov kho: 2023-12-15 23:12
Ib qho kev sib npaug nuclear sib npaug yog ib qho uas cov lej ntawm cov lej loj (tus lej saum toj kawg nkaus hauv cov cim) thiab cov lej ntawm cov lej atomic sib npaug ntawm ob sab ntawm qhov sib npaug. Nuclear equation teeb meem feem ntau yuav muab xws li tias ib qho particle ploj lawm. Kawg hloov kho: 2023-12-15 23:12
Kingdom Archaebacteria. 2. ARCHAEBACTERIA • Archaebacteria yog cov kab mob qub tshaj plaws nyob hauv ntiaj teb. Lawv yog cov unicellular prokaryotes - microbes tsis muaj cell nucleus thiab lwm yam membrane-bound organelles nyob rau hauv lawv cov hlwb - thiab belongs rau lub nceeg vaj, Archaea. Kawg hloov kho: 2023-12-15 23:12
Tube zoo li lub teeb fluorescent yog hu ua tube teeb. Tube teeb yog lub teeb uas ua haujlwm ntawm qhov tsis tshua muaj siab mercury vapor discharge phenomenon thiab converts ultra violate ray mus rau pom rays nrog kev pab los ntawm phosphor coated hauv iav raj. Kawg hloov kho: 2023-12-15 23:12
Islands tuaj yeem tsim los ntawm volcanic eruption nyob rau hauv dej hiav txwv pem teb, tsub zuj zuj ntawm sediments nyob rau hauv ib cheeb tsam nyob rau hauv lub cev dej, los yog reef tsev. Islands tsim los ntawm volcanic eruptions yog hu ua high Islands los yog volcanic Islands tuaj. Kawg hloov kho: 2023-12-15 23:12
Lub Hnub Ci System muaj lub cev elliptical lossis lub qe, thiab yog ib feem ntawm lub galaxy hu ua Milky Way. Lub hnub ci sab hauv muaj lub hnub, Mercury, Venus, Ntiaj Teb thiab Mars. Cov ntiaj chaw ntawm sab hnub ci System yog Jupiter, Saturn, Uranus, Neptune thiab Pluto. Kawg hloov kho: 2023-12-15 23:12
Lub Protectorate yog ib lub nroog tsim los ntawm Muam Ignatia los pab nws ciaj sia mus ntev. Nws hais kom txhua tus neeg tuaj nyob hauv Tus Tiv Thaiv tom qab lawv lub zos raug puas tsuaj los ntawm cov hluav taws kub tawg 500 xyoo dhau los. Cov neeg tuaj, tab sis lawv muaj kev tu siab loj heev rau kev poob lawv lub tsev. Kawg hloov kho: 2023-12-15 23:12
Ib qho chaw tiaj tus. Kawg hloov kho: 2023-12-15 23:12
Raws li lub hnub qub, Lub Hnub yog lub pob roj (92.1 feem pua hydrogen thiab 7.8 feem pua helium) tuav ua ke los ntawm nws tus kheej lub ntiajteb txawj nqus. Kawg hloov kho: 2023-12-15 23:12
Vim yog qhov kev taw qhia tsis sib xws ntawm ob lub chromosomal DNA strands, ib qho strand (ua strand) yog replicated nyob rau hauv ib tug feem ntau processive yam, thaum lwm yam (lagging strand) yog synthesized nyob rau hauv luv luv seem hu ua Okazaki fragments. Kawg hloov kho: 2023-12-15 23:12
Xeric-semiarid huab cua, huab cua Mediterranean, txias, moist winters, qhuav summers, dryland qoob loo tau los ntawm khaws cia av. Tsis siv rau hyperthermic lossis iso- STR. SMCS moist ½ rau ¾ Lub sijhawm, noo> 45 hnub sib law liag hauv lub caij ntuj no, thiab qhuav> 45 hnub sib law liag hauv lub caij ntuj sov. Kawg hloov kho: 2023-12-15 23:12
Peb Yuav Kawm Li Cas Yav Dhau Los? Paleoclimatology yog kev kawm txog huab cua cov ntaub ntawv los ntawm ntau pua mus rau lab xyoo dhau los. Lwm qhov chaw ntawm cov ntaub ntawv pov thawj rau huab cua muaj xws li pas dej thiab dej hiav txwv sediments, txheej ntawm cov dej khov (cored los ntawm cov ntawv dej khov), corals, pob txha, thiab cov ntaub ntawv keeb kwm los ntawm lub nkoj cav thiab cov neeg saib xyuas huab cua thaum ntxov. Kawg hloov kho: 2023-12-15 23:12
Eukaryotic Autotrophs: Nroj tsuag thiab Protists Tsiaj thiab fungi yog heterotrophs; lawv haus lwm yam kab mob los yog cov khoom siv organic los muab lawv lub zog uas lawv xav tau. Qee cov kab mob, archaea thiab protists kuj yog heterotrophs. Cov nroj tsuag hu ua autotrophs vim lawv ua lawv tus kheej cov zaub mov. Kawg hloov kho: 2023-12-15 23:12
Cells: Structure thiab Function A B chlorophyll ntsuab pigment uas absorbs lub teeb rau photosynthesis plastid ib tsob nroj cell qauv uas khaws cov zaub mov ntawm muaj pigment ribosome lub 'construction site' rau proteins ntxhib endoplasmic reticulum ribosomes muaj peev xwm pom nyob rau hauv lub nto ntawm no organelle. Kawg hloov kho: 2023-12-15 23:12
Thaum lub sij hawm ua pa aerobic, cov pa oxygen tau txais los ntawm lub xov tooj ntawm tes ua ke nrog cov piam thaj los tsim lub zog hauv daim ntawv ntawm Adenosine triphosphate (ATP), thiab lub xov tooj ntawm tes tawm carbon dioxide thiab dej. Qhov no yog cov tshuaj tiv thaiv oxidation uas cov piam thaj yog oxidized thiab oxygen txo. Kawg hloov kho: 2023-12-15 23:12
Nws npog txoj kev no ntawm qhov ceev ntawm ze li ntawm 30 kilometers ib ob, los yog 67,000 mais ib teev. Kawg hloov kho: 2023-12-15 23:12
Kev Kho Mob txhais ntawm tib neeg ecology 1: ib ceg ntawm kev noj qab haus huv muaj kev txhawj xeeb tshwj xeeb nrog rau kev kawm txog kev sib raug zoo ntawm tib neeg thiab lub cev thiab kev lag luam, kev sib raug zoo, thiab kev nom kev tswv. Kawg hloov kho: 2023-12-15 23:12