Question

Over many years, researchers tested how quickly mice could run through the same complicated maze. In the first year, 20 mice were tested (10 males and 10 females). The two fastest males were then mated with the two fastest females. A year later, offspring from the first matings were tested in the same maze and the two fastest male offspring were mated with the two fastest female offspring. This process (testing and then selective breeding) continued for a total of five years. At the end of five years, the average time through the maze improved by 35%. What do these results suggest about rat maze running behavior?A. the ability of a mouse to navigate rapidly through a maze is significantly influenced by the environmentB. genes contribute to the ability of mice to navigate quickly through a mazeC. parents teach their offspring how to navigate quickly through a mazeD. rapid maze running of rats is an innate behavior that can be modified through experience

Answer 1

I think that the answer is A. B,C, and D are very innate reasons for the proficiency of the mating.