A Newly Evolved Species May Take Over an Ecological Role

A newly evolved species may take over an ecological role or ecological niche that is already occupied if the new species has:

A) the ability to alter or change the environmental parameters.
B) features that make it competitively superior to the original occupant of that niche.
C) the ability to evolve through natural selection, whereas the original occupant cannot continue to evolve.
D) the ability to grow to a larger size, thus providing it with a selective advantage.
E) fitness that is almost as high as the fitness of the original species.