PLEASE HELP! Darwin suggested that evolution occurred at a steady, relatively slow rate. Today m, scientists cite fossil evidence to support which revision of Darwin’s suggestion?
A. Evolution occurs slowly in the ocean and rapidly on land.
B. Evolution occurs slowly at the molecular level and rapidly at the organism level.
C. Evolution occurs slowly in some classes and rapidly in other classes.
D. Evolution may sometimes occur very rapidly, in any clade and at any time.