Video: Puas yog Matthias Schleiden tau sib yuav?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Therese Marezol m. Xyoo 1855–1881
Bertha Mirus m. 1844–1854: kuv
Ntawm no, Matthias Schleiden nrhiav tau dab tsi txog cov hlwb?
Xyoo 1838, Matthias Schleiden , ib tug German botanist, xaus lus tias tag nrho cov nroj tsuag cov ntaub so ntswg yog tsim los ntawm hlwb thiab hais tias ib tug embryonic nroj tsuag tshwm sim los ntawm ib tug cell . Nws tshaj tawm tias tus cell yog lub hauv paus tsev thaiv ntawm tag nrho cov nroj tsuag teeb meem. Cov lus no ntawm Schleiden yog thawj generalizations txog hlwb.
Ib sab saum toj no, Schleiden thiab Schwann nrhiav tau dab tsi? Schwann , Theodor In 1838 Matthias Schleiden muaj hais tias cog cov ntaub so ntswg yog tsim los ntawm cov cell. Schwann tau pom qhov tseeb tib yam rau tsiaj cov ntaub so ntswg, thiab nyob rau hauv 1839 xaus lus tias tag nrho cov ntaub so ntswg yog tsim los ntawm cov hlwb: qhov no nteg lub hauv paus rau lub cell txoj kev xav. Schwann cov hlwb muaj npe tom qab nws.
Tsuas yog li ntawd, Matthias Schleiden paub txog dab tsi?
Matthias Yakhauj Schleiden (1804–1881) Schleiden pab txhawb rau lub teb ntawm embryology los ntawm nws cov kev taw qhia ntawm Zeiss microscope lens thiab ntawm nws ua hauj lwm nrog hlwb thiab cell theory raws li ib tug txheej txheem ntawm biology. Schleiden yug hauv Hamburg, lub teb chaws Yelemees, lub Plaub Hlis 5, 1804.
Schleiden muaj tswv yim dab tsi txog kev loj hlob ntawm cov nroj tsuag?
Schleiden pom tias tag nrho nroj tsuag zoo li yog tsim los ntawm cov hlwb, thiab nws tau hais tias cov hlwb no yog qhov tseem ceeb tshaj plaws ntawm lub neej hauv lub neej nroj tsuag . Nws tau hais tias cog kev loj hlob coj qhov chaw los ntawm tiam tshiab hlwb, uas, nws sib cav, yuav propagate los yog 'crystallize' los ntawm buds ntawm lub nucleus ntawm qub hlwb.
Pom zoo:
Puas yog txoj cai ntawm kev sib xyaw ua ke siv tau rau cov khoom sib xyaw?
Cov teeb meem tsis tuaj yeem tsim los yog rhuav tshem, txawm hais tias itis ib qho khoom, qhov sib xyaw, lossis sib xyaw. b) Txoj cai lij choj ntawm qhov tseeb muaj pes tsawg leeg tsuas yog siv rau cov khoom sib txuas nkaus xwb, vim hais tias nws hais txog qhov tsis tu ncua, lossis qhov tseeb, muaj pes tsawg leeg ntawm cov ntsiab lus hauv ib qho chaw
Yuav daws qhov tsis sib npaug ntawm cov kab sib npaug thiab cov kab sib npaug sib npaug li cas?
Kev daws qhov tsis sib npaug ntawm qhov sib npaug yog zoo ib yam li kev daws cov kab sib npaug. Qhov sib txawv tseem ceeb yog koj tig lub cim tsis sib xws thaum faib lossis muab faib los ntawm tus lej tsis zoo. Graphing linear inequalities muaj ob peb qhov sib txawv ntxiv. Qhov uas yog qhov ntxoov ntxoo muaj xws li qhov tseem ceeb uas qhov kev tsis sib xws ntawm cov kab tawm muaj tseeb
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
Puas yog nws ua tau rau ib qho kev sib npaug ntawm ob txoj kab sib npaug kom tsis muaj kev daws teeb meem piav qhia koj qhov laj thawj?
Cov kab ke ntawm kab sib npaug tuaj yeem tsuas muaj 0, 1, lossis ib qho kev daws teeb meem tsis kawg. Ob kab no tsis tuaj yeem hla ob zaug. Cov lus teb raug yog tias qhov system muaj ib qho kev daws teeb meem. Total Number of Points Number of 2-Point Baskets Number of 3-Point Baskets 17 4 (8 ntsiab lus) 3 (9 points) 17 1 (2 points) 5 (15 points)
Dab tsi yog qhov sib txawv ntawm cov kab lus sib npaug thiab qhov sib npaug sib npaug?
Cov kab lus sib npaug muaj qhov muaj txiaj ntsig zoo ib yam tab sis tau nthuav tawm nyob rau hauv ib hom ntawv sib txawv uas siv cov khoom ntawm cov lej xws li ax + bx = (a + b) x yog cov kab lus sib npaug. nruj me ntsis, lawv tsis yog 'sib npaug', yog li peb yuav tsum siv 3 kab sib luag hauv 'sib npaug' es tsis yog 2 raws li qhia ntawm no