U fiirso qoraalka hoose ka dibna ka jawaab su'aasha kadib isla luqadda qoraalka:  Passage: Cilmi-baadhayaashu waxay bartaan abiogenesis iyagoo isku daraya bayoolajiyada molecule, paleontology, astrobiology, oceanography, biophysics, geochemistry iyo biochemistry, waxayna doonayaan inay ogaadaan sida fal-celinta kiimikada ee nolosha ka hor ay u keentay nolosha. Daraasadda abuurka noolaha waxay noqon kartaa mid geofisikal ah, kiimiko ah, ama bayooloji ah, iyadoo hababka ugu dambeeyay ay isku dayayaan isku-darka dhammaan saddexda, maadaama noloshu ku dhalatay xaalado aad uga duwan kuwa maanta Dhulka ka jira. Nolosha waxay ku shaqaysaa kiimikooyinka gaarka ah ee ka kooban kaarboon iyo biyo, waxayna inta badan ku dhisan tahay afar qoys oo kiimikooyin ah: lipids (dubooyinka unugyada dufanka leh), carbohydrates (sonkorta, cellulose), amino acids (protein metabolism), iyo nucleic acids (DNA iyo RNA is-isku-dubaridka). Fikrad kasta oo lagu guulaysto ee ku saabsan abuurka noolaha waa inay sharraxdaa asalka iyo isdhexgalka noocyada molecules-ka ah. Qaabab badan oo lagu barto biogenesis waxaa lagu baadhayaa sida ay molecules-yada is-soo-baxaya, ama qaybaha ay ka kooban yihiin, u soo baxeen. Cilmi-baadhayaashu waxay guud ahaan u maleynayaan in nolosha hadda jirta ee Dunida ay ka soo jeedo adduunka RNA, in kasta oo nolosha ku saleysan RNA aysan noqon karin nolosha ugu horreysa ee jirtay. Tijaabada caadiga ah ee 1952 Miller-Urey iyo cilmi baaris la mid ah ayaa muujisay in inta badan amino acids, qaybaha kiimikada ee borotiinnada loo isticmaalo dhammaan noolaha nool, laga soo saari karo isku-darka aan dabiici ahayn ee xaaladaha loogu talagalay inay ku soo koobaan kuwa dhulka hore. Saynisyahannadu waxay soo jeediyeen ilo kala duwan oo tamar ah oo laga yaabo inay keeneen falcelisyadan, oo ay ku jiraan hillaaca iyo shucaaca. Qaab kale oo loo yaqaano "metabolism-first" hypotheses) waxay diiradda saarayaan fahamka sida catalysis ee nidaamyada kiimikada ee dhulka hore ay u bixiyeen maaddada horudhaca ah ee loo baahan yahay is-isku-dubaridka. Molecules-yada dabiiciga ah ee adag waxay ka dhacaan nidaamka qorraxda iyo meelaha bannaan ee xiddigaha dhexdooda, molecules-yadaasi waxay noqon karaan kuwa bixiyay qalabka bilawga ah ee horumarka nolosha ee dhulka. Biochemistry-ka nolosha ayaa laga yaabaa inuu bilaabmay wax yar ka dib qaraxii weynaa, 13.8 bilyan sano ka hor, inta lagu gudajiray xilligii la degganaan karay markii da'da caalamka ay ahayd...  S: Qaybta duufaanta ee la aaminsan yahay in ay sabab u tahay falcelintaas?
hillaac