Qhov twg hauv qab no tsis yog cov noob perispermic?

Cov txheej txheem:

Qhov twg hauv qab no tsis yog cov noob perispermic?
Qhov twg hauv qab no tsis yog cov noob perispermic?
Anonim

- Groundnut lossis Arachis hypogaea yog ib qho piv txwv ntawm cov noob uas tsis yog-albuminous. Lub endosperm tau noj tag nrho thaum lub sij hawm embryo txoj kev loj hlob thiab tsis muaj qhov khaws cia. Yog li, lo lus teb raug yog 'Black pepper'. Nco tseg: - Lub perisperm muaj diploid genetic pleev, thaum lub endosperm muaj ib tug triploid genetic pleev.

Cov piv txwv Perispermic yog dab tsi?

Perisperm: Qab Zib beet, kas fes, thiab kua txob dub yog cov piv txwv ntawm cov noob perispermic. Cov seem ntawm nucellus tshuav tom qab fertilization thiab nqus los ntawm endosperm thiab embryo yog hu ua perisperm. Cov noob uas muaj perisperm yog hu ua perispermic noob.

YPuas Castor yog Perispermic noob?

teb tag:

Los ntawm cov kev xaiv castor yog piv txwv ntawm cov noob nrog endosperm, perisperm, thiab caruncle. Nyob rau hauv lub hauv paus cell ntawm lub embryo sac muaj nthuav ib tug triploid thawj endosperm nucleus los ntawm qhov chaw endosperm yog tsim.

Cov nroj tsuag twg tsim cov noob Perispermic?

Perispermic noob yog (1) Castor, sunflower(2) kua txob dub, beet (3) pob kws, beet (4) barley, pob kws.

Puas kua txob dub puas muaj Perispermic noob?

Teb tiav:

Ntawm no cov noob kua txob dub yog Perispermicvim nws muaj cov khoom noj khoom haus ntawm cov noob hu ua perisperm.

Pom zoo:

Pob noob noob noob noob nom noob tswv los?

Pob noob noob noob noob nom noob tswv los?

Cov noob noob hnav tuaj yeem tshwm sim hauv Asia lossis East Africa, thiab cov neeg Iyiv thaum ub tau paub tias tau siv cov noob hauv av ua hmoov nplej. Cov noob tau siv los ntawm Suav tsawg kawg yog 5,000 xyoo dhau los, thiab ntau pua xyoo lawv tau hlawv cov roj los ua cov tshuaj tsw qab rau cov ntawv suav zoo tshaj plaws.

Cov khoom xyaw twg hauv qab no ua cov tshuaj tsw qab hauv cov tshuaj txhuam hniav?

Cov khoom xyaw twg hauv qab no ua cov tshuaj tsw qab hauv cov tshuaj txhuam hniav?

Sodium lauryl sulfate (SLS) yog surfactant feem ntau siv. YPuas yog tshuaj txhuam hniav puas yog surfactant? Surfactants. Ntau, txawm tias tsis yog tag nrho, tshuaj txhuam hniav muaj sodium lauryl sulfate (SLS) lossis lwm yam surfactants (detergents).

Ntawm qhov twg ntawm cov ces kaum hauv qab no yog cov haujlwm cosecant tsis tau txhais?

Ntawm qhov twg ntawm cov ces kaum hauv qab no yog cov haujlwm cosecant tsis tau txhais?

Qhov tseeb, tus nqi xa rov qab los ntawm kev ua haujlwm cosecant rau lub kaum sab xis ntawm xoom degrees lossis ib puas yim caum degrees yog suav tias yog tsis tau txhais, txij li qhov sib npaug csc (θ)= 1 / sin θ ) yuav suav nrog kev faib los ntawm xoom.

Qhov twg ntawm cov haujlwm hauv qab no yog qhov ua haujlwm tsis muaj ntaub ntawv?

Qhov twg ntawm cov haujlwm hauv qab no yog qhov ua haujlwm tsis muaj ntaub ntawv?

printf thiab scanf yog cov piv txwv rau formatted input thiab output functions thiab getch, getche, getchar, gets, puts, putchar thiab lwm yam yog cov piv txwv ntawm unformatted input output functions. Tus qauv input-output header ntaub ntawv, npe hu ua stdio.

Qhov twg hauv qab no yog qhov piv txwv ntawm qhov tsis suav nrog cov lej tsis suav nrog?

Qhov twg hauv qab no yog qhov piv txwv ntawm qhov tsis suav nrog cov lej tsis suav nrog?

Pi is a non-terminating, non-repeating decimal. π=3.141 592 653 589 793 238 462 643 383 279 … e is a non-terminating, non-repeating decimal. Ib qho piv txwv ntawm tus lej tsis suav nrog yog dab tsi? Piv txwv: 0.5, 2.456, 123.456, thiab lwm yam.