Motility is an essential function of living organisms which requires the conversion of chemical energy to mechanical energy.
(Motility; is; an essential function of living organisms which requires the conversion of chemical energy to mechanical energy) (an essential function of living organisms; requires; the conversion of chemical energy to mechanical energy)
Motility an essential function of living organisms
is requires
an essential function of living organisms which requires the conversion of chemical energy to mechanical energy
the conversion of chemical energy to mechanical energy