which of these best demonstrates natural selection

Question

A. a population of mice grow increasingly larger because the predators moved away from the area
B. The pelvic bones and snakes have grown smaller because they do not have legs.
C. A population of flowers takes over certain area because they attract the most bees for pollination. D. The human pendants has shrunk in size overtime because it is not used.

Answer 1

B. The pelvic bones in snakes have grown smaller because they do not have legs. This is a clear example of natural selection as the snakes with smaller pelvic bones were able to move more effectively and survive, passing on their genes to future generations.