Kev kawm txog marine biology suav nrog ntau yam kev qhuab qhia xws li astronomy, biological oceanography, cellular biology, chemistry, ecology, geology, meteorology, molecular biology, lub cev oceanography thiab zoology thiab cov kev tshawb fawb tshiab ntawm marine kev txuag biology kos rau ntau qhov kev tshawb fawb ntev
Pom tau tsuas yog hauv xyoo 1977, cov vents hydrothermal yog lub tsev rau ntau ntau yam tsis paub yav dhau los. Loj liab-tipped raj worms, ghostly ntses, coj txawv txawv cws nrog ob lub qhov muag ntawm lawv nraub qaum thiab lwm yam tsiaj tshwj xeeb vam meej nyob rau hauv cov huab dej hiav txwv ecosystems pom nyob ze undersea volcanic chains
Enzymes ceev cov tshuaj tiv thaiv los ntawm kev txo qis ntawm lub zog ua kom lub zog xav tau rau qhov tshwm sim. Cov reactant (s) ntawm cov tshuaj tiv thaiv yog catalyzed los ntawm ib qho enzyme. Ib qho chaw tshwj xeeb ntawm ib qho enzyme qhov twg substrates txuas raws li cov duab. Substrate (s) txuas rau lub enzyme ntawm qhov chaw ua haujlwm
Ob leeg benzene thiab ethene yog unsaturated hydrocarbons tab sis benzene yog tsawg reactive tshaj ethene vim nws kim heev delocalization uas ua rau stability. Benzene nyiam kev hloov pauv hloov dua li cov tshuaj tiv thaiv ntxiv. Ntawm qhov tod tes, ethane tsis tshua muaj zog dua li benzene vim lawv qhov saturated
Cov kab mob tsim cov xeeb ntxwv ntau dua li qhov muaj sia nyob. Cov kab mob tuaj yeem tuag los ntawm ntau yam ua rau: kab mob, kev tshaib plab, thiab noj, thiab lwm yam. Ib puag ncig tsis tuaj yeem txhawb nqa txhua yam kabmob uas yug los. Ntau tus tuag ua ntej lawv muaj peev xwm rov tsim dua
Qhov no yog tshwm sim los ntawm qhov nce ntawm cov protons thiab electrons nyob rau ib lub sij hawm. Ib qho proton muaj txiaj ntsig ntau dua li ib qho hluav taws xob; Yog li, electrons raug rub mus rau lub nucleus, ua rau lub vojvoog me me. Atomic radius nce saum toj mus rau hauv qab hauv ib pab pawg. Qhov no yog tshwm sim los ntawm electron shielding
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
Los ntawm qhov no, Mendel tau kwv yees tias cov kab mob zoo ib yam yog txhua tus txiav txim siab los ntawm ob lub noob, ib lub noob los ntawm leej niam thiab ib qho los ntawm leej txiv. Alleles Mendel tau txiav txim siab tias yuav tsum muaj ntau tshaj ib qho ntawm txhua tus noob
800 degrees Fahrenheit
Pine dawb yog ib qho yooj yim los txheeb xyuas. Nws nplooj los yog koob tshwm sim nyob rau hauv tej pob los yog fascicles ntawm tsib, 3-5 ntiv tes ntev, bluish ntsuab, nrog zoo dawb kab los yog stomata. Lub khob hliav qab yog 3-6 ntiv tes ntev, maj mam tapering, nrog lub khob hliav qab nplais tsis muaj prickles thiab lub teeb tan mus rau xim dawb nyob rau sab ntug ntawm cov nplai
Hauv kev tshawb fawb, kev ntsuas yog ib qho ntawm cov ntaub ntawv ntau lossis cov lej uas piav qhia txog cov khoom ntawm ib yam khoom lossis qhov xwm txheej. Ib qho kev ntsuas yog ua los ntawm kev sib piv ib qho kom muaj nuj nqis nrog cov qauv ntsuas. Niaj hnub nimno International System of Units (SI) pib txhua hom kev ntsuas lub cev ntawm xya lub hauv paus
Cua sov lub Troposphere: Radiation, conduction, thiab convection ua hauj lwm ua ke kom sov lub troposphere. Thaum nruab hnub, lub hnub hluav taws xob ua kom lub ntiaj teb ntog. Lub teb chaws sov dua li huab cua. Huab cua nyob ze ntiaj teb saum npoo yog sov los ntawm ob qho tib si hluav taws xob thiab kev coj ua
Zygomycota feem ntau yug me nyuam asexually los ntawm kev tsim sporangiospores. Zygomycota rov tsim dua kev sib deev thaum ib puag ncig tsis zoo. Txhawm rau tsim kev sib deev, ob hom kev sib deev tsis sib haum yuav tsum sib txuas lossis sib txuas, yog li, sib koom cov ntsiab lus ntawm caj ces thiab tsim zygospores
Qhov saum npoo ntawm lub hli Lub hli saum npoo yog npog nrog cov hluav taws kub tuag, cuam tshuam craters, thiab lava ntws, qee qhov pom rau lub hnub qub uas tsis muaj hnub qub. Cov kws tshawb fawb thaum ntxov tau xav tias qhov tsaus ntuj nti ntawm lub hli yuav yog dej hiav txwv, thiab thiaj li hu ua cov yam ntxwv mare, uas yog Latin rau ' hiav txwv ' (maria thaum muaj ntau tshaj ib qho)
1 Teb. Vacuoles tswj dej, thaum thelysosomes rhuav tshem cov hlwb
Kab mob hlwb (sex hlwb) yog diploid (2n) hlwb hauv gonads uas faib los ntawm meiosis ua plaub haploid (n) gametes. Yog hais tias gamete nqa ib qho kev hloov pauv ntawm cov kab mob fertilized, qhov kev hloov pauv yog theej los ntawm mitosis rau txhua lub cell hauv cov xeeb ntxwv, suav nrog cov kab mob. Cov kev hloov pauv no tuaj yeem yog cov kab mob genetic disorders
Calla lilies hlob nyob rau hauv zoo-drained, xoob av. Thaum cov av tau npaj lawm, lawv yuav tsum tau cog rau ntawm qhov tob ntawm kwv yees li 2 ntiv tes nrog cov nplooj loj hlob taw rau saum. Calla lilies xav tau 1 txog 1½ taw ntawm qhov chaw loj hlob ntawm txhua tsob nroj. Tom qab cog, kom huv si dej lub qhov muag teev
Ib lub koog pov txwv yog lub cev ntawm thaj av uas nyob ib puag ncig los ntawm dej. Continents kuj nyob ib puag ncig los ntawm dej, tab sis vim lawv loj heev, lawv tsis suav tias yog cov Islands tuaj. Cov kob me me no feem ntau hu ua islets
BPA ua phem rau kuv lub cev li cas? BPA cuam tshuam koj txoj kev noj qab haus huv ntau dua li ib qho. Cov tshuaj lom neeg muaj feem cuam tshuam rau kev ua me nyuam, kev tiv thaiv kab mob, thiab cov teeb meem hauv lub paj hlwb, nrog rau kev nce ntxiv ntawm Alzheimer's, mob hawb pob thaum yau, kab mob metabolic, mob ntshav qab zib hom 2, thiab kab mob plawv
Mitosis (ib theem hauv lub voj voog ntawm tes) tshwm sim tom qab DNA hauv ib lub xovtooj tau muab luam tawm, txhais tau tias muaj ob pawg chromosomes hauv ib lub xovtooj. Qhov tshwm sim ntawm mitosis yam tsis muaj cytokinesis yuav yog ib lub xovtooj ntawm ntau tshaj ib lub nucleus. Xws li ib tug cell hu ua multinucleated cell. Qhov no tuaj yeem yog ib qho txheej txheem
Daim iav concave: Daim iav concave yog siv los tsim cov duab virtual, upright thiab magnified, thaum cov khoom nyob rau hauv focal point thiab ncej ntawm daim iav. Cov cuab yeej ntawm daim iav concave no ua rau nws muaj txiaj ntsig zoo rau cov kws kho hniav kom pom cov duab loj ntawm cov hniav thiab kab noj hniav thiab lwm yam
Lub Hom Phiaj Ua Haujlwm Nws tuaj yeem muaj tus nqi siab tshaj plaws, tus nqi qis kawg, ob qho tib si, lossis tsis yog. Nws tag nrho yog nyob ntawm thaj tsam ua tau. Muaj ob hom kev sib txawv ntawm cheeb tsam: thaj tsam uas muaj ciam teb thiab tsis muaj thaj tsam. Qhov tsawg kawg nkaus lossis siab tshaj tus nqi ntawm lub hom phiaj ua haujlwm ib txwm tshwm sim ntawm qhov chaw ntawm thaj tsam ua tau
Qhov loj qhov tsis zoo ntawm cov kab hluav taws xob sib txuas piv rau cov kab hluav taws xob yog tias lub zog tseem nyob ntawm tib qhov hluav taws xob raws li qhov hluav taws xob ntawm ib qho hluav taws xob. Lwm qhov tsis zoo suav nrog kev sib cais ntawm lub zog hluav taws xob thoob plaws tag nrho lub zog hluav taws xob, thiab kev ua haujlwm qis dua
John Dalton
Siv rau Hlau thiab Nonmetals Ci ntsa iab hlau xws li tooj liab, nyiaj, thiab kub feem ntau yog siv rau kev kos duab, hniav nyiaj hniav kub, thiab npib. Cov hlau muaj zog xws li hlau thiab hlau alloys xws li stainless hlau yog siv los tsim cov qauv, nkoj, thiab cov tsheb xws li tsheb, tsheb ciav hlau, thiab tsheb thauj khoom
Piv txwv li, silicon muaj 14 protons thiab 14 neutrons. Nws atomic tooj yog 14 thiab nws atomic mass yog 28. Qhov feem ntau isotope ntawm uranium muaj 92 protons thiab 146 neutrons. Nws atomic tooj yog 92 thiab nws atomic mass yog 238 (92 + 146). 2.1 Electrons, Protons, Neutrons, thiab Atoms. Element Iron Symbol Fe Number of Electrons in Txhua Plhaub Thawj 2 Thib Ob 8 Peb 14
Thawj lub tswv yim ntawm photon yog tsim los ntawm Albert Einstein. Txawm li cas los xij, nws yog tus kws tshawb fawb Gilbert N. Lewis uas xub siv lo lus 'photon' los piav txog nws. Txoj kev xav uas hais tias lub teeb coj ob qho tib si zoo li nthwv dej thiab ib feem yog hu ua yoj-particle dual txoj kev xav
Pib thiab nres codons yog ib qho tseem ceeb vim hais tias lawv qhia lub xov tooj ntawm tes machinery qhov twg yuav pib thiab xaus kev txhais lus, txheej txheem ntawm kev ua cov protein. Qhov pib codon cim qhov chaw ntawm qhov kev txhais lus rau hauv protein ntau pib. Qhov nres codon (los yog termination codon) cim lub vev xaib uas txhais lus xaus
Lava flow speeds sib txawv raws li viscosity thiab nqes hav. Feem ntau, lava ntws maj mam (0.25 mph), nrog qhov siab tshaj plaws ntawm 6-30 mph ntawm qhov chaw siab tshaj. Ib qho tshwj xeeb ceev ceev ntawm 20-60 mph tau kaw tom qab qhov tawg ntawm lub pas dej lava ntawm Mount Nyiragongo
Daim Ntawv Thov Cov Ntawv Sau Npe, raws li tau hais tseg hauv HCS, yog ib pawg tsim nyog ntawm cov ntaub ntawv sau, luam tawm lossis cov duab nraaj hais txog cov tshuaj lom neeg uas tau muab tso rau, luam tawm, lossis txuas rau lub thawv tam sim ntawm cov tshuaj lom neeg txaus ntshai, lossis rau lub ntim sab nraud
Cov kua qaub yog ib qho sib xyaw uas yaj hauv dej los ua ib hom kev daws teeb meem. Chemically, cov kua qaub yog ib yam khoom uas tsim hydronium ions (H3O +) thaum yaj hauv dej. Thaum hydrochloric acid (HCl) yaj nyob rau hauv dej, nws ionizes, splitting mus rau hauv hydrogen (H +) thiab chlorine (Cl-) ions
Ib tug tswv cuab ntawm tsev neeg cephalopod, Nautilus zoo li tus qwj ua luam dej nrog cov tentacles. Cov pob txha muaj sia no tau hloov pauv tsawg heev hauv 500 lab xyoo dhau los. Maj mam loj hlob thiab maj mam ua haujlwm, Nautilus tuaj yeem ua neej nyob mus txog 100 xyoo
Lichens tsis yog kab mob ntawm cov nroj tsuag uas lawv loj hlob, tab sis tsuas yog siv lawv ua substrate kom loj hlob. Cov fungi ntawm qee hom lichen tuaj yeem 'siav' cov algae ntawm lwm hom lichen. Lichens ua lawv tus kheej cov zaub mov los ntawm lawv cov photosynthetic qhov chaw thiab los ntawm absorbing minerals los ntawm ib puag ncig
Lub hav zoov uas paub zoo tshaj plaws ntawm zaj sawv eucalyptus ntawm Maui yog nyob ze ntawm mais 7 raws Hana Txoj Kev Loj tab sis cov ntoo zoo nkauj no tau tawg mus rau ntau qhov chaw xws li Ke'anae Arboretum thiab cov chaw ua ntej Hana lub zos
Lawv tuaj nyob rau hauv ntau yam, hu ua cov ntsiab lus, tab sis txhua lub atom qhia tej yam ntxwv zoo sib xws. Txhua lub atoms muaj lub hauv paus ntom ntom hu ua atomic nucleus. Tag nrho cov atoms muaj tsawg kawg yog ib tug proton nyob rau hauv lawv cov tub ntxhais, thiab tus naj npawb ntawm protons txiav txim seb hom ntawm lub atom yog dab tsi
10 Cov Khoom Ua Si Zoo Tshaj Plaws & Lub Tswv Yim Khoom Plig Rau Cov Ntxhais 7-xyoo-laus tshuaj xyuas Acuity. Ballerina Musical Jewelry Box. Washable Makeup Set. Xim koj tus kheej lub raj mis dej. Crayola Light Up Tracing Pad. LEGO Disney Elsa's Sparkling Castle. ALEX Cov Khoom Ua Si Craft Kuv Thawj Sewing Kit. Aurora Plush Ntxhais fuabtais Kitten Hnab
10/12 Simplified yog dab tsi? - 5/6 yog qhov yooj yim feem rau 10/12. Simplify 10/12 rau daim ntawv yooj yim tshaj plaws
Qee lub nroog thiab cov zej zog uas nyob ntawm San Andreas Fault suav nrog: Bodega Bay. Daly City. Desert Hot Springs. Frazier Park. Gorman. Moreno Valley. Palmdale. Point Reyes Chaw Nres Tsheb
Tsuas yog coj qhov loj ntawm ib mole ntawm cov pa thiab faib los ntawm molar ntim. Cov khoom thiab cov kua ntim tau teb rau qhov kub thiab txias, tab sis cov lus teb yog me ntsis uas nws feem ntau tuaj yeem tsis quav ntsej hauv cov chav kawm pib. Yog li, rau gases, peb hais txog 'tus qauv roj ntom ntom.' Qhov no yog qhov ceev ntawm cov roj ntawm STP
Yog hais tias ob kab yog txiav los ntawm ib tug transversal thiab coj cov ces kaum yog congruent, ces cov kab yog parallel. Yog hais tias ob kab yog txiav los ntawm ib tug transversal thiab alternate sab hauv lub kaum sab xis yog congruent, ces cov kab yog parallel