Video: Cov neeg siv khoom tau txais lub zog npaum li cas thaum lawv noj?
2024 Tus sau: Stanley Ellington | [email protected]. Kawg hloov kho: 2023-12-16 00:17
Thawj cov neeg siv khoom xwb tau ib feem ntawm tag nrho cov hnub ci zog -li 10% - ntes los ntawm cov neeg tsim khoom lawv noj . Lwm 90% yog siv los ntawm cov neeg tsim khoom rau kev loj hlob, kev loj hlob, thiab kev ciaj sia, los yog nws poob li cua sov. Koj ua tau tej zaum pom qhov no mus qhov twg. Thawj cov neeg siv khoom yog noj los ntawm theem nrab cov neeg siv khoom.
Ua li no, cov neeg siv khoom thib ob tau txais lub zog npaum li cas?
Yog li ntawd, thawj cov neeg siv khoom tau txais txog 10% ntawm cov zog ua los ntawm autotrophs, thaum cov neeg siv khoom thib ob tau txais 1% thiab tertiary cov neeg siv khoom tau txais 0.1%. Qhov no txhais tau tias sab saum toj neeg siv khoom ntawm cov saw khoom noj tau txais tsawg kawg nkaus zog , raws li ntau ntawm cov khoom noj khoom haus zog tau poob ntawm qib trophic.
Ib yam li ntawd, leej twg tau txais lub zog tshaj plaws hauv cov khoom noj khoom haus? Food Chains thiab Energy Flow
| A | B |
|---|---|
| 10% | tus nqi zog dhau ntawm txhua qib hauv cov khoom noj khoom haus / lub zog pyramid |
| Dab tsi ntawm cov neeg muaj sia nyob tau txais lub zog ntau tshaj plaws los ntawm lub hnub? | ntsuab nroj tsuag (producers/autotrophs) |
| Cov pab pawg twg ntawm cov neeg siv khoom tau txais lub zog tshaj plaws hauv cov khoom noj khoom haus? | plant eaters (herbivores) |
Tsis tas li ntawd, vim li cas cov neeg siv khoom tau txais tsuas yog 10% ntawm lub zog ntawm ib theem ntawm cov khoom noj khoom haus mus rau lwm qhov thaum noj?
Zog yog dhau mus saw khoom noj los ntawm ib trophic qib rau tom ntej no . Txawm li cas los xij, xwb txog 10 feem pua ntawm tag nrho zog khaws cia rau hauv cov kab mob ntawm ib trophic qib yog tau pauv mus rau kab mob ntawm tom ntej no trophic qib . Tus so ntawm zog yog siv rau cov txheej txheem metabolic lossis poob rau ib puag ncig raws li cua sov.
Yuav ua li cas rau lwm 90% nyob rau hauv 10% txoj cai?
Kaum Feem pua Txoj cai : Yuav ua li cas rau lwm 90 % ntawm lub zog tsis khaws cia hauv cov neeg siv khoom lub cev? Feem ntau ntawm lub zog uas tsis tau khaws cia yog poob li cua sov los yog siv los ntawm lub cev thaum nws ua cov kab mob uas tau noj.
Pom zoo:
Leej twg tau txais lub zog tshaj plaws hauv cov khoom noj khoom haus?
Teb thiab piav qhia: Thawj theem trophic ntawm cov khoom noj khoom haus muaj zog tshaj plaws. Qib no muaj cov neeg tsim khoom, uas yog tag nrho cov kab mob photosynthetic
Thaum twg tus neeg yuav khoom tau txais tswv cuab los ntawm tus muag khoom thaum siv cov lus FOB?
'FOB shipping point' lossis 'FOB keeb kwm' txhais tau tias tus neeg yuav khoom muaj kev pheej hmoo thiab siv cov tswv cuab ntawm cov khoom thaum tus muag khoom xa khoom. Rau cov hom phiaj kev lag luam, tus neeg muag khoom yuav tsum sau ib qho muag ntawm qhov chaw tawm ntawm nws qhov chaw xa khoom
Cov neeg ua li cas thaum lawv lub sij hawm dawb thaum lub sij hawm Kev Nyuaj Siab Loj?
Cov neeg tau pom txoj hauv kev tshwj xeeb thiab pheej yig los lom zem rau lawv tus kheej thaum muaj Kev Nyuaj Siab Loj. Lawv mloog ntau yam xov tooj cua los yog coj mus ua yeeb yaj kiab pheej yig. Lawv kuj tau koom nrog hauv kev ua kis las, fads, lossis kev lom zem kev sib tw uas tsis raug nqi dab tsi hlo li
Nws hu li cas thaum cov khoom tshiab lossis cov saw tshiab nyiag cov neeg siv khoom thiab muag los ntawm cov laus uas twb muaj lawm nws raug xa mus rau?
Thaum cov khoom tshiab lossis cov saw tshiab tshiab nyiag cov neeg siv khoom thiab kev muag khoom los ntawm cov qub qub ntawm ib lub koom haum, qhov no yog hu ua. Cannibalization
Dab tsi yog qee qhov chaw ntawm cov ntaub ntawv uas tus neeg siv khoom siv tau thaum tshawb fawb txog cov khoom?
Hauv qab no yog tsib lub peev txheej uas koj tuaj yeem siv los ua kev tshawb nrhiav kev lag luam nrog cov ntsiab lus ntawm cov ntaub ntawv lawv muab. Census.gov. Cov ntaub ntawv suav pej xeem, uas Tsoom Fwv Teb Chaws Asmeskas khaws txhua kaum xyoo, muaj nyob rau hauv online, searchabledatabase. USA.gov. Koom Haum Lag Luam Me (SBA.gov) FocusGroup.com. SurveyMonkey.com