Tib neeg cov ntshav yog liab vim hemoglobin, uas nqa hauv cov ntshav thiab ua haujlwm thauj oxygen, yog hlau nplua nuj thiab xim liab. Octopuses thiab horseshoe crabs muaj ntshav xiav. Qhov no yog vim hais tias cov protein thauj oxygen hauv lawv cov ntshav, hemocyanin, yog xiav.
Puas yog tib neeg cov ntshav puas muaj xim dua li liab?
Yog, tib neeg cov ntshav ntsuab ntsuab hauv dej hiav txwv tob. Peb yuav tsum ceev faj txog qhov peb txhais li cas los ntawm xim. Cov khoom tsis tshua muaj xim xim.
Puas yog ntshav liab hauv koj lub cev?
Tib neeg cov ntshav liab vim yog cov protein hemoglobin, uas muaj cov xim liab xim hu ua heme uas yog qhov tseem ceeb rau kev nqa oxygen los ntawm koj cov hlab ntsha. Heme muaj cov hlau atom uas khi rau oxygen; Nws yog cov molecule no uas thauj cov pa tawm ntawm koj lub ntsws mus rau lwm qhov hauv lub cev.
Puas deoxygenated ntshav xiav?
Nyob hauv ntau lub TV qhia, daim duab thiab qauv, deoxygenated ntshav yog xiav. Txawm saib koj tus kheej lub cev, cov leeg pom xiav ntawm koj daim tawv nqaij. Lwm qhov chaw hais tias ntshav ib txwm liab. …
Vim li cas ntshav liab tab sis cov leeg xiav?
Thaum koj ua pa, koj ua rau koj cov ntshav puv nrog oxygen, thiab nws ua rau lawv muaj xim liab heev. … Cov xim uas peb pom yog qhov tshwm sim ntawm qhov wavelengths ntawm lub teeb yog reflected rov qab rau peb ob lub qhov muag. Cov leeg tshwm xiav vim lub teeb xiav yog rov qab los rau peb lub qhov muag …
