Puas yog opossums thawj cov neeg siv khoom?
Puas yog opossums thawj cov neeg siv khoom?

Video: Puas yog opossums thawj cov neeg siv khoom?

Video: Puas yog opossums thawj cov neeg siv khoom?
Video: Cov ntseeg siv tshuaj los kho mob & pehawm hauv tuamtsev puas txhaum 2024, Kaum ib hlis
Anonim

Cov neeg siv khoom tuaj yeem muab faib ua peb pawg. Herbivores (cov nroj tsuag noj), suav nrog mos lwj thiab luav thawj cov neeg siv khoom . Omnivores (cov nroj tsuag thiab cov nqaij noj), suav nrog raccoons thiab opossums , yog theem nrab cov neeg siv khoom . Carnivores (nqaij noj) suav nrog panthers, bobcats, alligators, thiab raptors yog tertiary cov neeg siv khoom.

Nyob rau hauv no txoj kev, yog ib tug toad yog thawj tus neeg siv khoom?

Lawv suav hais tias thawj cov neeg siv khoom . Cov neeg siv khoom tseem ceeb yog qib 2nd trophic. Toads noj nas noog. Yog li ntawd, lawv yog ib qib trophic siab dua li cov nyom nyom.

Tsis tas li ntawd, cov tsiaj twg yog ob qho tib si thawj thiab cov neeg siv khoom thib ob? Cov lus teb piv txwv: Cov neeg siv khoom tseem ceeb : nyuj, luav, tadpoles, ntsaum, zooplankton, nas. Cov neeg siv khoom thib ob : Qav, ntses me, krill, kab laug sab. Tertiary cov neeg siv khoom : nab, raccoons, hma, ntses.

Ua raws li qhov kev pom no, puas yog cov neeg siv khoom lag luam tseem ceeb?

Salmon kev noj zaub mov muaj kab thaum lawv tseem hluas thiab lwm cov ntses thaum lawv laus dua, uas yog qhov qhia meej tias lawv tsis yog cov neeg tsim khoom (cov nroj tsuag) lossis thawj cov neeg siv khoom (kab, tsiaj me).

Ob tus neeg siv khoom tseem ceeb yog dab tsi?

Cov ob Lub luag haujlwm tseem ceeb hauv cov khoom noj khoom haus yog cov tsim khoom thiab neeg siv khoom . Cov neeg siv khoom tseem ceeb yog cov kab mob uas noj tsuas yog cov neeg tsim khoom thiab yog txhua yam tsiaj txhu (cog noj) xws li luav, qwj, nyuj, thiab txawm tias giraffes!

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