Here's why:

* Developmental biology is the scientific study of the processes by which organisms grow and develop. It encompasses a wide range of topics, including:

* Gene regulation: The control of gene expression during development.

* Cell differentiation: The process by which cells become specialized for different functions.

* Morphogenesis: The development of the form and structure of an organism.

* Organogenesis: The formation of organs and organ systems.

* Growth and aging: The changes in size and function that occur throughout an organism's life.

Key points:

* Orderly sequence: Developmental biology focuses on the specific and ordered steps involved in growth.

* Genetically designed: The processes are driven by the genetic instructions inherited by an organism.

* Biological growth processes: This refers to the complex interactions of cells, tissues, and organs that lead to the formation of a complete organism.

Let me know if you'd like more information about any of these aspects of developmental biology.