Cov txheej txheem:
- Kev sib cais ntawm kev yug me nyuam cuam tshuam li cas rau cov txheej txheem speciation?
- Puas speciation los ntawm kev sib cais?
- Yuav ua li cas thaum muaj kev sib cais ntawm kev yug me nyuam?
- Vim li cas kev rho menyuam tawm tseem ceeb heev rau qhov tshwj xeeb?
Video: Yam kev cais menyuam puas yuav ua rau muaj qhov tshwj xeeb?
2024 Tus sau: Fiona Howard | [email protected]. Kawg hloov kho: 2024-01-10 06:38
Kev sib cais cais tawm yog meej meej yog ib qho tseem ceeb ntawm cov txheej txheem speciation thiab yog qhov tseem ceeb rau kev saib xyuas ntawm ntau haiv neeg. Thaum tsis muaj kev sib cais ntawm kev yug me nyuam, kev sib txuas ntawm (sexual) hom yuav tsum ua rau lub cev qhuav dej ntawm ntau haiv neeg.
Kev sib cais ntawm kev yug me nyuam cuam tshuam li cas rau cov txheej txheem speciation?
Kev sib cais ntawm kev sib deev sawv cev rau kev sib cais ntawm kev muaj peev xwm ua tiav nrog kev sib deev ntawm lwm hom kab mob, thiab speciation yuav tsum tsim kom muaj kev sib cais ntawm kev sib cais ntawm cov kab mob sib txawv kom txog thaum cov noob ntws tsawg txaus. los yog tsis muaj txiaj ntsig uas cov koom haum suav tias yog ' …
Puas speciation los ntawm kev sib cais?
Cov kws tshawb fawb xav tias thaj chaw cais tawm yog ib txoj hauv kev zoo rau cov txheej txheem ntawm kev pib tshwj xeeb: cov dej ntws hloov pauv, roob nce siab, cov teb chaws drift, kab mob tsiv teb tsaws, thiab dab tsi yog ib zaug. Cov pejxeem tsis tu ncua muab faib ua ob lossis ntau dua cov neeg tsawg.
Yuav ua li cas thaum muaj kev sib cais ntawm kev yug me nyuam?
Kev sib cais yog ib qho kev sib sau ntawm cov txheej txheem, kev coj cwj pwm, thiab cov txheej txheem physiological uas tiv thaiv cov tswv cuab ntawm ob hom sib txawv uas hla los yog sib yuav los ntawm kev tsim cov xeeb ntxwv, los yog ua kom ntseeg tau tias txhua tus xeeb ntxwv uas tej zaum yuav raug tsim los tsis muaj fertile.
Vim li cas kev rho menyuam tawm tseem ceeb heev rau qhov tshwj xeeb?
Cov txheej txheem ntawm kev sib cais ntawm kev yug me nyuam yog ib qho kev sau ntawm evolutionary mechanisms, tus cwj pwm thiab cov txheej txheem physiological tseem ceeb rau speciation. Lawv tiv thaiv cov tswv cuab ntawm ntau hom kev tsim cov xeeb ntxwv, lossis xyuas kom txhua tus xeeb ntxwv tsis muaj menyuam.
Pom zoo:
Puas yog tshwj xeeb lossis tshwj xeeb?
Cov lus no muaj lub ntsiab lus zoo ib yam. Qhov txawv tsuas yog nyob rau hauv lawv cov ntawv sau. Kev tshwj xeeb yog nyob deb ntawm qhov kev xaiv nrov dua hauv Asmeskas Lus Askiv, yog li koj yuav tsum siv nws tshwj xeeb nrog cov neeg Asmeskas.
Puas muaj kev nyab xeeb rau kev noj tshuaj thaum cev xeeb tub?
Tshaj Dramamine®-N Ntau Lub Hom Phiaj txhawm rau txo qhov xeev siab. Dramamine®-N Multi-Purpose Formula yog tsim los ntawm Ginger Extract kom tshem tawm xeev siab thiab muaj kev nyab xeeb rau cov poj niam cev xeeb tub . Yuav ua li cas cov tshuaj xeev siab yuav nyab xeeb thaum cev xeeb tub?
Puas muaj kev sib haum xeeb ntawm kev sib haum xeeb kev cai lij choj?
Peb qhov kev sib cog lus loj yog Kev Sib Tham Zoo Tshaj Plaws, Peb Lub Tsib Hlis Ntuj, thiab Tsev Kawm Ntawv Xaiv Tsa. Qhov Kev Pom Zoo Loj tau daws teeb meem ntawm kev sawv cev hauv tsoomfwv . Qhov kev sib haum xeeb loj ntawm Txoj Cai Lij Choj tau ua rau dab tsi?
Qhov twg ntawm cov yam ntxwv hauv qab no tshwj xeeb rau ctenophora?
Ctenophora Txhais Ctenophores yog dawb-ua luam dej, pob tshab, jelly-zoo li, mos-bodied, marine tsiaj muaj biradial symmetry, comb-zoo li ciliary daim hlau rau locomotion, lub hlwb lasso tab sis nematocytes xav tau. Lawv tseem hu ua sea walnuts lossis comb jellies .
Puas muaj menyuam muaj menyuam ua rau kev sib nrauj?
Ib txoj kev tshawb fawb ntawm yuav luag 50,000 tus poj niam Danish pom tias cov poj niam uas tsis muaj menyuam tom qab kev kho mob fertility yog peb npaug ntau dua li kev sib nrauj lossis xaus kev sib raug zoo nrog lawv tus khub dua li cov uas ua.
