Answer:
Developmental milestones may be achieved gradually
Explanation:
All aspects of personality are stable and do not change throughout one's life. Stage theories can also help researchers who are examining physical development examine discrete changes in the brain that allow certain developmental milestones to be reached.
I believe the answer is: <span>It could not be reduced to its basic elements
Phi phenomenon refers to the optical illusion that make a person see a series of non-moving image as if it's making a motion if it's seen in rapid succession. This indicates that the perception is created from the combination of many sense at once</span>
Metropolis
A metropolis is the capital or major citiy of a country or region as well as the administrative center.
