2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Muaj muaj ob hom tsiaj nyob ntawm coelacanth, thiab ob qho tib si tsis tshua muaj. West Indian Dej hiav txwv coelacanth (Latimeria chalumnae) nyob ntawm ntug dej hiav txwv sab hnub tuaj ntawm Africa, thaum Indonesian coelacanth (Latimeria menadoensis) pom nyob rau hauv dej tawm ntawm Sulawesi, Indonesia.
Puas tseem muaj coelacanths?
Tsuas muaj tsuas yog ob hom coelacanths: ib qho nyob ze ntawm Comoros Islands tawm sab hnub tuaj ntug dej hiav txwv ntawm Africa, thiab ib qho pom hauv dej ntawm Sulawesi, Indonesia.
Puas muaj pes tsawg coelacanths?
Lub IUCN tam sim no faib L. chalumnae li Critically Endangered, nrog rau tag nrho cov pejxeem loj ntawm 500 lossis tsawg dua tus neeg. L. menadoensis raug suav hais tias tsis muaj zog, nrog cov pejxeem loj dua (tsawg dua 10,000 tus neeg).
Cov coelacanths ploj mus xyoo 2020?
Cov hom tam sim no npe ua qhov muaj kev phom sij txaus ntshai. Raws li kev tshawb fawb tshiab luam tawm nyob rau hauv SA Journal of Science, txij li lub Tsib Hlis 2020, muaj tsawg kawg yog 334 cov lus ceeb toom ntawm coelacanth captures.
Yuav ua li cas rau cov coelacanths tam sim no?
Lub coelacanth, ib qho ntses tob tob hauv hiav txwv ib zaug xav tias yuav ploj mus, muaj lub ntsws tsis pom nyob hauv nws lub plab, cov kws tshawb fawb tau tshawb pom. Lub ntsws zoo li yuav ua rau tsis zoo los ntawm kev hloov pauv thaum cov ntses txav mus rau hauv dej tob, pab pawg neeg tshawb fawb thoob ntiaj teb tau tshaj tawm hauv phau ntawv xov xwm Nature Communications.
Pom zoo:
Puas muaj nyiaj pab txhawb tsev noj mov puas tseem muaj?
Asmeskas Kev Tswj Lag Luam Me (SBA) tshaj tawm qhov kawLub Tsev Noj Qab Haus Huv Revitalization Fund (RRF) tom qab muab qhov kev pabcuam tag nrho $ 28.6 billion tsim nyog rau ntau dua 100,000 lub tsev noj mov, tuav, thiab lwm yam lag luam uas muab zaub mov thiab dej haus rau ntawm qhov chaw.
Koj puas tseem muaj dunkleosteus?
Dunkleosteus yog ib qho extinct genus ntawm cov armored loj, lub puab tsaig ntses uas muaj nyob rau lub sijhawm Devonian lig, txog 358-382 lab xyoo dhau los. Koj tuaj yeem pom Dunkleosteus fossils nyob qhov twg? Fossils ntawm Dunkleosteus muaj nyob hauv late Devonian pob zebuas yog Frasnian thiab Famennian hauv hnub nyoog (382-358 Myo).
Dab tsi yog qhov tseem ceeb thiab vim li cas nws tseem ceeb los txheeb xyuas koj qhov tseem ceeb?
Qhov tseem ceeb yuav coj koj hauv kev txiav txim siab hauv lub neej thiab ua rau koj taug qab. Qhov tseem ceeb tshaj plaws, qhov tseem ceeb tshaj plaws yuav ua rau koj ntseeg siab hais tias "tsis yog." Lawv pab koj txheeb xyuas qhov xav tau tiag tiag hauv koj lub neej, piv rau lwm tus xav tias tseem ceeb.
Koj puas tseem muaj kuv cov bitcoins?
Tam sim no, ntau dua 18 lab bitcoins tau raug mined. Raws li ib txoj hauv kev los tswj cov kev taw qhia ntawm bitcoins tshiab rau hauv kev ncig, lub network raws tu qauv ib nrab ntawm cov bitcoins muab rau cov miners kom ua tiav ib qho thaiv txhua plaub xyoos.
Vim li cas qhov tseem ceeb ntawm qhov muaj zog thiab qhov tsis muaj zog yog qhov tseem ceeb?
Nws yog ib qho tseem ceeb rau qhov tseem ceeb ntawm qhov ua tau zoo thiab qhov tsis muaj zog vim qhov no pab lub tuam txhab txiav txim siab txog thaj chaw uas lawv yuav tsum tau txhim kho ntxiv rau thaj chaw uas lawv ua tau zoo hauv. Vim li cas lub zog thiab qhov tsis muaj zog tseem ceeb?
