His theory of evolutionary selection holds that the variation within species occurs randomly and that the survival or extinction of each organism is determined by that organism's ability to adapt to its environment.
(the survival or extinction of each organism; is determined; by that organism's ability) (His theory of evolutionary selection; holds; that the variation within species occurs randomly and that the survival or extinction of each organism is determined by that organism's ability) Context(His theory of evolutionary selection holds,List([0, 42))):(the variation within species; occurs randomly; )
His theory of evolutionary selection holds,List([0, 42))
the survival or extinction of each organism His theory of evolutionary selection the variation within species
is determined holds occurs randomly
by that organism's ability
that the variation within species occurs randomly and that the survival or extinction of each organism is determined by that organism's ability