Leej twg hais txog hom kab mob morphological?

Cov txheej txheem:

Leej twg hais txog hom kab mob morphological?
Leej twg hais txog hom kab mob morphological?
Anonim

Morphological species concept (MSC) Cronquist (1978) siv lub tswv yim no nws txhais cov hom me tshaj plaws uas niaj hnub thiab txiav txim siab txawv thiab txawv ntawm qhov nruab nrab txhais tau tias.

Leej twg muab lub tswv yim morphological ntawm hom?

K. Jordan yog thawj tus tsim lub tswvyim no hauv xyoo 1905. Tom qab xyoo 1940, Mayr tau txhawb lub tswvyim no. Raws li lub tswv yim no, "Ib hom yog ib pab pawg ntawm cov tib neeg uas muaj kev sib cuam tshuam ntawm cov pej xeem uas raug cais tawm ntawm lwm pab pawg".

Dab tsi yog hom kab mob morphological?

Phenetic Species Concept (morphological species concept): ib pawg kab mob uas zoo sib xws thiab sib txawv ntawm lwm yam teeb meem. Phylogenetic Species tswvyim: pawg tsawg tshaj plaws monophyletic txawv los ntawm kev sib koom muab los ntawm (synapomorphic) yam ntxwv.

Leej twg hais txog Nominalistic hom tswvyim?

2. Nominalistic Species Concept: Occan, tus tawm tswv yim ntawm lub tswv yim no thiab nws cov thwjtim (Buffon, Bessey, Lamarck, thiab lwm yam) ntseeg tias tsuas yog tib neeg muaj nyob tab sis tsis ntseeg txog lub neej ntawm hom.

3 hom tswvyim yog dab tsi?

Lub tswv yim ntawm hom yog ib qho tseem ceeb tab sis nyuaj hauv biology, thiab qee zaum raug xa mus rau "qhov teeb meem ntawm hom". Qee hom tsiaj loj yog: Typological (los yog Essentialist, Morphological, Phenetic) hom tswvyim. Typology yog nyob ntawmmorphology/phenotype.

Pom zoo:

Nthuav cov khoom
Pob splanchnic paj hlwb synapse?
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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?
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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?
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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 .