Critical to the Theory of Evolution, Darwin Needed to Include

Critical to the theory of evolution, Darwin needed to include an idea that was not generally accepted by scientists or society at that time. That idea was that

A) catastrophism occurred at a uniform rate.
B) the inheritance of acquired characteristics was true.
C) the Earth must be very old.
D) uniformitarianism was false.
E) diversity of life was constant through time. Darwin had to conclude that the Earth was very old in order for there to be enough time for species to evolve.