Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Ihe na-eme ka ha na-agafe: Nọmba atọm nke hydrogen, carbon, nitrogen, oxygen, na phosphorus, bụ́ ndị na-eme ka e nwee deoxyribonucleic acid (DNA) (na-acha odo odo)  Ajụjụ: Olee otú ọ na-acha?
acha odo odo