To move they need help from the muscle is they did not have any help from them they would be like a bunch of sticks
Through a series of stages, Piaget proposed four stages of cognitive development: the sensorimotor, preoperational, concrete operational and formal operational period. The sensorimotor stage is the first of the four stages in cognitive development which "extends from birth to the acquisition of language".
This statement is true because "Participating in physical activities always will improve your health in anyway and every way possible.
It just good for you."
