Myrtle mcgraw's studies, teaching twins jimmy and johnny to roller skate and other activities, showed that you can

I believe the answer is:  speed motor development with exercise, but to a limited extent.

Motor development is influenced by both genetic factors and nurturing factors. Exercise that individuals do for both our brain and muscle could help individuals achieve the maximum potential that is given by our genetics, but it cannot determine the potential itself.

it all depends on how long the hours are. i think they wouldn't approve of it. in my opinion.

answer; randomization;