Are different areas of child development interrelated-?

Development progresses in a step-by-step fashion. It is orderly, sequential, and proceeds from the simple to the complex. Although children develop in different rates it is evident that the interrelation from one step to another are greatly significant. Development is influenced by heredity and environment. A child's genetic heredity provides the basic foundation for many physical and personality attributes, but the influences of social, cultural, and environment also contribute to development.