klu korang sumer nk tahu,ni la prgerakan bacteria yg sngat laju dgn saiznya yg sngat kecil.menakjubkan kan.skali pndang nmpak mcm prgerakan sperma plak ekk,tp ni bkan sperma eh.ni observed teros dri microscope tau.bacteria nie amik drpd batang sayur kailan yg busuk @ dlm erti kata sains, busuk means infected with bacteria la,huhu.teruja gilerr ble 1st time tgk.sbelom nie,observe fungi jer,xde la nmpak imej yg gerak2 cmni,huhu...