Video: Peb yuav faib biodiversity li cas?
2024 Tus sau: Miles Stephen | [email protected]. Kawg hloov kho: 2023-12-15 23:36
Biodiversity suav nrog peb hom tseem ceeb: muaj ntau haiv neeg nyob rau hauv hom (genetic muaj ntau haiv neeg ), ntawm hom (hom muaj ntau haiv neeg ) thiab nruab nrab ntawm ecosystems (ecosystem muaj ntau haiv neeg ).
Raws li, 3 theem ntawm biodiversity yog dab tsi?
Feem ntau peb theem ntawm biodiversity yog tham txog-genetic, hom , thiab ecosystem ntau haiv neeg . Genetic ntau haiv neeg yog tag nrho cov noob sib txawv uas muaj nyob rau hauv txhua tus tib neeg cov nroj tsuag, tsiaj txhu, fungi, thiab microorganisms. Nws tshwm sim hauv ib hom zoo li nruab nrab hom.
Ib yam li ntawd, 8 theem ntawm kev faib tawm ntawm biodiversity yog dab tsi? Cov niaj hnub taxonomic kev faib tawm system muaj yim lub ntsiab qib (los ntawm feem ntau suav nrog rau feem ntau tshwj xeeb): Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species Identifier.
Kuj kom paub, dab tsi yog qhov yooj yim chav tsev ntawm kev faib tawm txhais nws?
Basic unit ntawm kev faib yog hom. Hom kab mob yog txhais raws li ib pawg ntawm cov kab mob uas muaj cov yam ntxwv tshwj xeeb uas sib txawv ntawm lwm tus.
Vim li cas peb thiaj xav tau biodiversity?
Biodiversity boosts ecosystem productivity qhov twg txhua hom, txawm li cas los xij, txhua tus muaj lub luag haujlwm tseem ceeb. Piv txwv li, Ntau hom nroj tsuag ntau dua txhais tau tias muaj ntau hom qoob loo. Ntau hom ntau haiv neeg ua kom muaj kev ruaj khov rau txhua yam kev ua neej.
Pom zoo:
Yuav ua li cas cov txheej txheem ntawm cell faib nyob rau hauv eukaryotes feem ntau zoo ib yam li cell faib nyob rau hauv prokaryotes?
Tsis zoo li eukaryotes, prokaryotes (uas suav nrog cov kab mob) tau txais ib hom kev faib cell hu ua binary fission. Hauv qee qhov, cov txheej txheem no zoo ib yam li mitosis; Nws yuav tsum tau rov ua dua ntawm cov cell chromosomes, cais ntawm cov theej DNA, thiab kev sib cais ntawm niam txiv cell cytoplasm
Vim li cas peb thiaj li hais txog kev txwv tsis pub muaj kev hais tawm thiab thaum twg peb yuav hais cov kev txwv?
Peb hais txog kev txwv vim nws yuav ua rau qhov sib npaug tsis tau txhais hauv qee qhov txiaj ntsig ntawm x. Qhov kev txwv ntau tshaj plaws rau cov lus qhia muaj nuj nqis yog N / 0. Qhov no txhais tau tias txhua tus lej muab faib los ntawm xoom tsis tau txhais. Piv txwv li, rau txoj haujlwm f(x) = 6/x², thaum koj hloov x = 0, nws yuav ua rau 6/0 uas tsis tau txhais
Peb qhov kev faib tawm txawv li cas hauv qib siab tshaj plaws no?
Linnaeus tau tsim cov theem hauv qab no ntawm kev faib tawm, los ntawm qeb dav tshaj plaws mus rau qhov tshwj xeeb tshaj plaws: lub nceeg vaj, chav kawm, kev txiav txim, tsev neeg, genus, hom. Sib piv thiab sib piv Aristotle cov txheej txheem ntawm kev faib tawm nrog Linnaeus
Vim li cas nws thiaj li hais tias lub Orthocenter ntawm daim duab peb sab obtuse yuav tsum nyob rau sab nraud ntawm daim duab peb sab?
Nws hloov tawm tias tag nrho peb qhov siab ib txwm sib tshuam ntawm tib lub ntsiab lus - lub npe hu ua orthocenter ntawm daim duab peb sab. Lub orthocenter tsis yog ib txwm nyob hauv daim duab peb sab. Yog tias daim duab peb sab yog obtuse, nws yuav nyob sab nraud. Txhawm rau ua kom qhov no tshwm sim cov kab qhov siab yuav tsum tau txuas ntxiv kom lawv hla
Kev faib cov lej zoo li faib cov lej li cas?
Tsuas yog muab cov txiaj ntsig zoo thiab ua rau cov lus teb tsis zoo. Thaum koj faib ob tus lej nrog tib lub cim, qhov tshwm sim yeej ib txwm zoo. Tsuas yog faib qhov tseem ceeb thiab ua kom cov lus teb zoo. Thaum koj faib ob tus lej nrog cov cim sib txawv, qhov tshwm sim ib txwm tsis zoo