Cov txheej txheem:
Video: Koj ua dab tsi tom qab germinating noob nyob rau hauv daim ntawv phuam?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Daim Ntawv Towel Germination
- Kua muag a daim ntawv phuam nyob rau hauv ib nrab thiab moisten ib nrab.
- Muab plaub los tsib noob ntawm ib nrab ntawm cov ntawv thiab quav lwm ib nrab hla lub noob .
- Tshuab qhib ib lub hnab ntshiab, sandwich loj zip-kaw hnab.
- Qhov chaw ntawv nrog noob sab hauv thiab rov kho lub hnab.
Ib yam li ntawd, koj khaws cov noob rau hauv daim ntawv ntev npaum li cas?
Kuv moisten cov daim ntawv phuam txhua 6 mus rau 12 teev. Ua tsis txhob siv dej ntau dhau. Cov noob tsuas yog yuav tsum tau damp. Nyob rau hauv 48 mus rau 72 teev, lub noob yuav tsum pop qhib.
Tsis tas li ntawd, koj ua li cas kom germination? Ib txoj hauv kev yooj yim los ua cov noob tawg sai dua yog presoak lawv rau 24 teev nyob rau hauv ib tug ntiav thawv ntim nrog dej kub kais dej. Cov dej yuav nkag mus rau lub tsho tiv no ntawm cov noob thiab ua rau cov embryos sab hauv kom plump nce . Tsis txhob ntub lawv ntev dua 24 teev vim tias lawv tuaj yeem rot. Cog cov noob tam sim ntawd hauv av noo.
Yog li ntawd, kuv yuav ua li cas tom qab kuv cov noob sprout?
Sau cov ntim thiab ntim cov av kom ruaj khov kom tshem tawm qhov khoob. Nco ntsoov tias feem ntau cov khoom xyaw muaj ob peb, yog tias muaj, cov as-ham, yog li koj yuav tsum tau pub cov noob nrog kua chiv ob peb lub lis piam. tom qab lawv germinate, thiab mus txuas ntxiv mus txog thaum koj hloov lawv mus rau hauv lub vaj.
Koj tso cov noob rau hauv dej ntev npaum li cas?
Sov ntau dhau lawm dej thiab a noob yuav poob dej. Nws pom zoo tias koj tsuas yog ntub feem ntau noob rau 12 mus rau 24 teev thiab tsis pub tshaj 48 teev.
Pom zoo:
Dab tsi yog cov xim muaj nyob rau hauv daim ntawv qhia kev phom sij rau kev noj qab haus huv hauv NFPA 704?
NFPA 704 pob zeb diamond kos npe siv los tso saib cov ntaub ntawv no muaj plaub ntu xim: xiav, liab, daj, thiab dawb. Txhua ntu yog siv los txheeb xyuas ib pawg sib txawv ntawm qhov muaj peev xwm txaus ntshai. Ntu xiav ntawm NFPA xim code cim qhia txog kev phom sij rau kev noj qab haus huv
Yuav ua li cas koj sau txoj kab nqes nqes intercept daim ntawv nyob rau hauv tus qauv daim ntawv?
Standard form yog lwm txoj hauv kev los sau daim ntawv nqes hav-intercept (as opposed to y=mx+b). Nws sau li Ax+By=C. Koj tuaj yeem hloov daim ntawv nqes hav-intercept rau cov qauv zoo li no: Y=-3/2x + 3. Tom ntej no, koj cais qhov y-intercept (qhov no nws yog 2) zoo li no: Ntxiv 3/2x rau txhua sab ntawm kab zauv kom tau qhov no: 3/2x + y = 3
Yuav ua li cas koj pom lub kaum sab xis ntawm ib sector nyob rau hauv daim ntawv ncuav qab zib?
1 Teb Nyob rau hauv ib qho sector, muaj 3 qhov yuav tsum tau xav txog: Qhov ntev arc yog ib feem ntawm lub voj voog.Thesector cheeb tsam yog ib feem ntawm tag nrho cheeb tsam. Thesectorangle yog ib feem ntawm 360 ° Yog hais tias lub sector yog 20% ntawm daim ntawv ncuav qab zib, ces cov khoom no yog 20% ntawm tag nrho. 20% × 360 ° 20100 × 360 = 72 °
Txoj cai lij choj ntawm kev cais nyob rau hauv noob caj noob ces yog dab tsi?
Ib qho ntawm cov hauv paus ntsiab lus no, tam sim no hu ua Mendel Txoj Cai Lij Choj ntawm Segregation, hais tias txhua tus khub sib cais lossis cais tawm thaum lub sijhawm gamete tsim thiab sib koom ua ke ntawm fertilization
Dab tsi ua rau cua daj cua dub nyob rau hnub tom qab tag kis?
Hauv zaj yeeb yaj kiab 'Hnub Tom Qab Tag Nrho,' Lub Ntiaj Teb tau muab pov rau hauv lub hnub nyoog dej khov tom qab dej hiav txwv hauv dej hiav txwv Atlantic grind kom nres. Tab sis kev tshawb fawb tsis ntev los no tau pom tias AMOC tuaj yeem qeeb qeeb yog tias cov dej tshiab txaus los ntawm cov dej khov yaj tuaj rau hauv dej hiav txwv tam sim no