Video: Dab tsi yog qhov kev hloov pauv sib txawv?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Ob yam khoom yog kev sib haum xeeb yog tias lawv yog cov loj thiab zoo tib yam. A congruence kev hloov yog a kev hloov pauv uas tsis hloov qhov loj lossis cov duab ntawm ib yam khoom. Muaj peb yam tseem ceeb ntawm congruence kev hloov pauv , thiab cov no yog reflections (flips), rotations (turn), thiab translations (slides).
Hauv qhov no, nws txhais li cas kom sib haum?
Kev sib haum xeeb . Angles yog kev sib haum xeeb thaum lawv loj tib yam (hauv degrees lossis radians). Sab yog kev sib haum xeeb thaum lawv yog tib qhov ntev.
Tom qab, lo lus nug yog, dab tsi yog congruent figure Piv txwv? Kev sib haum xeeb Cov duab Piv txwv Xav txog tag nrho cov pawns ntawm chessboard. Lawv tag nrho kev sib haum xeeb . Los xaus, cov duab zoo sib xws zoo ib yam ntawm qhov loj thiab cov duab; sab lengths thiab cov ces kaum yog tib yam. Lawv tuaj yeem hloov pauv, cuam tshuam, lossis txhais, thiab tseem yuav kev sib haum xeeb.
Ib tug kuj yuav nug, dab tsi yog congruent polygon?
Ob polygons yog kev sib haum xeeb yog tias lawv yog tib qhov loj thiab cov duab - uas yog, yog tias lawv cov ces kaum sib npaug thiab sab sib npaug. Txav koj tus cursor nas hla qhov chaw ntawm txhua daim duab ntawm sab laug kom pom qhov sib thooj ntawm qhov kev sib haum xeeb daim duab ntawm sab xis.
Dab tsi yog daim duab sib xyaw?
Kev sib haum xeeb Cov duab muaj qhov loj thiab tib yam zoo li qub. Ib lo lus, yog tias koj tso ib qho khoom rau pem hauv ntej ntawm daim iav, qhov duab uas koj pom yog kev sib haum xeeb los yog "sib npaug" rau qhov khoom. Thaum cov duab yog kev sib haum xeeb , tag nrho cov sab thiab cov ces kaum sib raug kev sib haum xeeb.
Pom zoo:
Dab tsi yog qhov kev hloov pauv hloov pauv?
Kev hloov pauv, hauv molecular biology, yog hais txog kev hloov pauv hauv deoxyribonucleic acid (DNA), qhov twg ib qho (ob lub nplhaib) purine hloov pauv rau (ib lub nplhaib) pyrimidine, los yog vice versa
Dab tsi yog qhov txawv ntawm qhov sib txawv ntawm qhov sib txawv thiab qhov sib txawv ntawm qhov ntab?
Integers thiab floats yog ob yam sib txawv ntawm cov ntaub ntawv tus lej. Ib tus lej (feem ntau hu ua anint) yog tus lej tsis muaj tus lej lej. Float isa floating-point number, uas txhais tau hais tias nws yog tus lej uas muaj tus lej lej. Floats siv thaum xav tau ntau dua
Dab tsi yog qhov txawv ntawm ib puag ncig kev hloov pauv thiab kev hloov pauv qub txeeg qub teg?
Qhov sib txawv ntawm cov yam ntxwv ntawm cov tib neeg ntawm tib hom yog hu ua variation. Qhov no yog inherited variation. Qee qhov kev hloov pauv yog qhov tshwm sim ntawm qhov sib txawv ntawm ib puag ncig, lossis ib tus neeg ua dab tsi. Qhov no yog hu ua environmental variation
Dab tsi yog qhov sib txawv ntawm qhov sib txawv ntawm cov kab sib txuas thiab ntau qhov sib piv?
6. (2 lub cim) Qhov sib txawv ntawm cov kab sib txuas (kev sib piv) thiab ntau qhov sib piv yog dab tsi? Cov kab sib xyaw ua ke yog npaj sib piv; uas yog, tshwj xeeb txhais tau tias yog ua ke nyob rau hauv ntau txoj kev thiab contrasted nrog rau lwm yam kev sib txuas ntawm txhais tau tias
Peb qhov laj thawj tseem ceeb ntawm kev hloov pauv hloov pauv yog dab tsi?
Allele frequencies nyob rau hauv ib tug pej xeem yuav hloov vim plaub lub hauv paus zog ntawm evolution: Natural Selection, Genetic Drift, Mutations thiab Gene Flow. Kev hloov pauv yog qhov kawg ntawm cov alleles tshiab hauv cov noob caj noob ces. Ob ntawm cov txheej txheem tseem ceeb tshaj plaws ntawm kev hloov pauv hloov pauv yog: Natural Selection thiab Genetic Drift