2024 Tus sau: Elizabeth Oswald | [email protected]. Kawg hloov kho: 2024-01-13 00:07
Microevolution yog qhov hloov pauv ntawm cov zaus ntawm allele uas tshwm sim dhau sijhawm hauv cov pejxeem. … Qhov kev hloov pauv no tshwm sim dhau ib qho luv luv (hauv cov ntsiab lus evolutionary) lub sijhawm piv rau cov kev hloov pauv hu ua 'macroevolution' uas yog qhov sib txawv ntau dua ntawm cov pejxeem tshwm sim.
macroevolution tshwm sim li cas?
Macroevolution yog ib qho kev hloov pauv uas tshwm sim ntawm lossis siab dua qib ntawm hom. Nws yog qhov tshwm sim ntawm microevolution tshwm sim ntau tiam neeg. Macroevolution tuaj yeem cuam tshuam txog kev hloov pauv hauv ob hom kev sib cuam tshuam, xws li hauv kev sib koom ua ke, lossis nws yuav cuam tshuam qhov tshwm sim ntawm ib lossis ntau hom hom tshiab.
Puas yog macroevolution muaj tseeb tshwm sim hauv cov pejxeem?
Cov lus muab: macroevolution tshwm sim hauv cov pejxeem yog cuav. Macroevolution tshwm sim nyob rau theem siab tshaj qib ntawm hom. Microevolution cuam tshuam txog kev hloov pauv hauv cov pejxeem lossis hom sib txawv rau macroevolution.
Puas microevolution tshwm sim hauv tib neeg?
Microevolution yog qhov kev hloov pauv hauv allele zaus uas tshwm sim dhau sijhawm hauv cov pejxeem. Qhov kev hloov pauv no yog vim muaj plaub yam txheej txheem sib txawv: kev hloov pauv, kev xaiv (natural thiab artificial), gene flow thiab genetic drift.
Puas evolution tshwm sim hauv tib neeg lossis pejxeem?
Cov kab mob tib neeg tsis hloov zuj zus. Populations evolve. … Cov nocov tib neeg feem ntau muaj sia nyob thiab tsim cov xeeb ntxwv ntau dua, yog li dhau lawv cov txiaj ntsig zoo rau lwm tiam neeg. Thaum lub sij hawm, cov pejxeem hloov.
Pom zoo:
Puas yog rov tshwm sim dua lossis rov tshwm sim dua?
Reoccur thiab recur yog verbs uas qhia ib lo lus hauv paus. Thaum lawv nyob ze heev ntawm lub ntsiab lus, lawv tsis zoo ib yam. Tej yam uas yog rov tshwm sim dua thiab dhau mus, tej zaum nyob rau ib ntus. Hauv qhov sib piv, ib yam dab tsi uas rov tshwm sim tsuas yog tshwm sim dua tab sis tsis tas yuav rov ua dua.
Thaum twg macroevolution tshwm sim?
Macroevolution yog ib qho kev hloov pauv uas tshwm sim ntawm lossis siab dua qib ntawm hom. Nws yog qhov tshwm sim ntawm microevolution tshwm sim nyob rau ntau tiam neeg. Macroevolution tuaj yeem cuam tshuam txog kev hloov pauv hauv ob hom kev sib cuam tshuam, xws li hauv kev sib koom ua ke, lossis nws yuav cuam tshuam qhov tshwm sim ntawm ib lossis ntau hom hom tshiab.
Puas tau tshwm sim lossis tshwm sim?
Qhov kev qhia "tshwm sim" tsis tuaj yeem siv qhov khoom ncaj qha, thiab yog li ntawd nws tsis muaj daim ntawv passive, yog li tsis muaj "yog/was/be tshwm sim" tense. Puas tau tshwm sim los yog tshwm sim? Ob daim ntawv yog grammatically raug (tsis sib xws rau kev hais lus ntawm qee cov lus Askiv purists).
Puas tsis muaj qhov tshwm sim tshwm sim xav tau enzymes?
Tam sim no, enzymes TSIS ua rau cov tshuaj tiv thaiv tsis yog tus kheej. Txawm li cas los xij, enzymes ua kom nrawm nrawm ntawm cov tshuaj tiv thaiv tus kheej. Yeej, lawv ua kom cov tshuaj tiv thaiv sai dua. Enzymes ua qhov no los ntawm kev txo qis kev ua kom lub zog ntawm cov tshuaj tiv thaiv.
Hiv tau tshwm sim thaum twg hauv cov pejxeem?
Kev tshuaj xyuas ntawm tus kab mob HIV tshiab tau pom los ntawm xyoo 1960 qhia tias tus kab mob no nkag mus rau tib neeg nyob ib puag ncig thaum pib ntawm lub xyoo pua nees nkaum. Thawj kis mob AIDS hauv Tebchaws Meskas tau tshaj tawm hauv 1981.
