Explanation

Child development is marked by interrelated processes, including:

• Differentiation: The process by which cells, tissues, and organs become specialized in structure and function.
• Integration: The process by which various parts of the child's system become connected and coordinated.
• Learning: The process by which children acquire new knowledge, skills, and behaviors.

Motivation is an important factor in child development, but it is not one of the interrelated processes that define development.