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Video: Qhov twg piav qhia txog lub teeb pom kev sib txuas?
![Video: Qhov twg piav qhia txog lub teeb pom kev sib txuas? Video: Qhov twg piav qhia txog lub teeb pom kev sib txuas?](https://i.ytimg.com/vi/HL8N5LTCALk/hqdefault.jpg)
2024 Tus sau: Michael Samuels | [email protected]. Kawg hloov kho: 2023-12-16 01:44
A compound light microscope yog a tsom iav nrog ntau dua ib lub lens thiab nws tus kheej teeb qhov chaw. Hauv hom no tsom iav , muaj cov tsom iav qhov muag nyob rau hauv lub qhov muag tsom iav thiab lub hom phiaj lo ntsiab muag hauv lub qhov ntswg tig los ze rau cov hnoos qeev.
Yooj yim li ntawd, dab tsi yog qhov sib xyaw ntawm lub tshuab tsom?
A compound microscope yog ib qho cuab yeej siv los saib cov duab loj ntawm cov khoom me me ntawm iav swb. Lub hom phiaj lens lossis lub hom phiaj nyob rau ntawm lub qhov ntswg muaj qhov ntev focal ntev thiab nyob ze rau lub hom phiaj qhov khoom uas nws khaws lub teeb thiab tsom cov duab ntawm cov khoom mus rau hauv tsom iav.
Tsis tas li ntawd, dab tsi yog lub tshuab tsom teeb pom kev zoo siv rau hauv biology? Biologists niaj hnub no muaj ntau hom tsom iav uas lawv siv los tshuaj xyuas cov cell, tab sis feem ntau siv yog compound lub teeb tsom . A compound light microscope siv lub teeb khoov los ntawm cov iav tsom iav kom ua kom pom cov qauv nyias ntawm qee yam. Cov nyob ntawm tes tuaj yeem pom nrog a compound lub teeb tsom.
Hais txog qhov no, koj tuaj yeem pom dab tsi nrog lub tshuab tsom teeb pom kev zoo?
A compound light microscope yog txwv rau txog 2000X magnification. Tshaj li qhov txwv koj tuaj yeem ua kom loj dua nws, tab sis tsis yog koj lub qhov muag lossis koj lub hlwb yuav muaj peev xwm paub cov duab. Nrog txwv ntawm ib puag ncig 2000X kev nthuav dav koj tuaj yeem pom kab mob, algae, protozoa thiab ntau hom tib neeg/tsiaj txhu.
Dab tsi yog hom tshuaj microscope?
Muaj ob lub ntsiab hom ntawm lub teeb tsom iav : COMPOUND thiab STEREO tsom iav . COMPOUND MICROSCOPES yog li ntawd vim lawv tsim nrog ib compound lens system. Lub hom phiaj lo ntsiab muag muab thawj qhov kev nthuav dav uas yog compounded (multiplied) los ntawm ocular lens (qhov muag).
Pom zoo:
Qhov twg zoo tshaj plaws piav qhia txog kev ntxhov siab vim dav dav?
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Kev Nyuaj Siab Tsis Txaus Siab (GAD) yog tus yam ntxwv tsis tu ncua thiab txhawj xeeb ntau txog ntau yam sib txawv. GAD raug kuaj pom thaum tus neeg pom tias nws nyuaj rau tswj kev txhawj xeeb ntau hnub ntau dua li tsis pub tsawg kawg rau lub hlis thiab muaj peb lossis ntau tus tsos mob
Dab tsi yog qhov sib txawv ntawm cov ntaub so ntswg sib txuas tsis tu ncua thiab cov ntaub so ntswg sib txuas tsis sib xws?
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Cov ntaub so ntswg sib txuas tsis sib thooj muaj cov fibers uas tsis tau sib dhos ua ke zoo ib yam li cov ntaub so ntswg sib txuas ib ntus. Cov ntaub so ntswg sib txuas tsis sib thooj muaj feem ntau ntawm cov fibers collagen. Nws muaj cov khoom hauv av tsawg dua li cov ntaub so ntswg sib txuas
Qhov twg ntawm cov kev sib txuas hauv qab no tsim cov dej sib khi ntawm cov xovtooj sib ze?
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Plasmodesmata yog kev sib tshuam sib txuas ntawm cov cell cog uas pab kom thauj cov ntaub ntawv ntawm cov cell. Kev sib tshuam nruj yog lub qhov dej kaw ntawm ob lub cell tsiaj nyob sib ze, uas tiv thaiv cov ntaub ntawv los ntawm kev tawm ntawm cov cell
Qhov twg ntawm lub qhov muag muaj lub teeb pom kev uas hloov pauv lub teeb liab mus rau hauv kev xav ntawm lub paj hlwb?
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Lub teeb yog mapped raws li ib tug duab nyob rau saum npoo ntawm lub retina los ntawm activating ib tug series ntawm lub teeb-sensitive hlwb hu ua rods thiab cones. Cov hlwb photoreceptor no hloov lub teeb mus rau hluav taws xob uas tau xa mus rau lub hlwb los ntawm cov hlab ntsha
Txoj kev tshawb fawb txog keeb kwm piav qhia txog kev ua phem txhaum cai li cas?
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Positivism yog kev tshawb fawb ib txwm muaj uas nrhiav kev tsim lub hom phiaj ua rau tus kheej tus cwj pwm. Biological piav qhia txog kev ua txhaum cai suav hais tias qee cov neeg yog 'yug txhaum cai', uas yog lub cev sib txawv ntawm cov neeg tsis yog neeg txhaum cai. Lub npe nrov tshaj plaws ntawm txoj hauv kev no yog Cesare Lombroso