Qhov piv txwv zoo tshaj plaws yog dab tsi?

Cov txheej txheem:

Qhov piv txwv zoo tshaj plaws yog dab tsi?
Qhov piv txwv zoo tshaj plaws yog dab tsi?
Anonim

Meristic traits yog cov uas cov phenotypes tau sau los ntawm suav tag nrho cov lej. Piv txwv ntawm kev zoo siab muaj xws li tus naj npawb ntawm cov noob hauv lub plhaub lossis cov qe tso los ntawm tus qaib hauv ib xyoos. Cov no yog qhov muaj nuj nqis ntau, tab sis lawv tsis muaj ntau yam ntawm phenotypes.

Tus yam ntxwv meristic yog dab tsi?

Meristic traits feem ntau piav nyob rau hauv ib tug shorthand sau npe hu ua meristic formula. Cov cim meristic yog cov qauv suav tau tshwm sim hauv koob(xws li myomeres, vertebrae, fin rays) hauv cov ntses. Cov cim no yog cov cim feem ntau siv rau kev sib txawv ntawm hom thiab pejxeem.

Tus yam ntxwv zoo yog dab tsi?

Ib yam zoo yog ib yam uas tuaj yeem piav qhia raws li qeb. Piv txwv li, lub tsho dub lossis xim liab, horned lossis polled, lub tsho loj xim dilution yog txhua yam zoo. Cov yam ntxwv zoo feem ntau tswj hwm los ntawm ib lossis ob peb lub noob txhais tau tias lawv yog cov yam ntxwv yooj yim.

Dab tsi yog qhov txawv txav?

Discrete, lossis tsis txuas ntxiv, yam ntxwv yog tswj los ntawm cov noob me me, feem ntau tsuas yog ib qho. Cov noob no feem ntau muaj ob lub alleles. … Ib qho piv txwv ntawm tib neeg alleles pom muaj freckles; Txhua tus neeg muaj freckled los yog non-freckled allele.

Txoj kev zoo yog dab tsi?

Quantitative traits uas discretely qhia nyob rau hauv ib tug tsawg tus naj npawb ntawmphenotypes (feem ntau yog ob), tab sis uas yog ua raws li qhov kev xav tsis tu ncua ntawm cov khoom uas ua rau muaj qhov zoo (kev lav ris hauv qab).

Pom zoo:

Nthuav cov khoom
Pob splanchnic paj hlwb synapse?
Nyeem ntxiv

Pob splanchnic paj hlwb synapse?

Cov hlab ntsha loj dua splanchnic taug kev los ntawm diaphragm thiab nkag mus rau hauv plab kab noj hniav. Nws fibers synapse ntawm celiac ganglia. Cov hlab ntsha txhawb nqa rau lub celiac plexus, lub network ntawm cov hlab ntsha nyob rau thaj tsam ntawm qhov chaw ntawm lub cev celiac ceg ntawm lub plab aorta.

Yuav coreopsis puas tawg rau lub caij ntuj sov?
Nyeem ntxiv

Yuav coreopsis puas tawg rau lub caij ntuj sov?

yog qhov kev xaiv zoo meej. Nrog ntau tshaj 80 hom coreopsis, muaj ntau yam kom haum txhua lub vaj tsim. Haiv neeg rau North America, coreopsis nroj tsuag loj hlob nyob rau hauv upright clumps thiab feature masses ntawm kaj, showy, daisy-zoo li paj thoob plaws lub caij ntuj sov.

Lub ntsiab lus ntawm kev hush up yog dab tsi?
Nyeem ntxiv

Lub ntsiab lus ntawm kev hush up yog dab tsi?

: tsi ntsiag to kuv hais rau nws kom txhob maj. slang txhais li cas? Koj hais 'Hush! ' rau ib tug thaum koj nug lossis qhia kom lawv nyob ntsiag to. Nkauj ruam ruam? "Tseem" yog lus Southern uas hais tias " shut up .