According to the developed by urban sociologists chauncey harris and edward ullman, cities do not have one center from which all growth radiates, but rather have numerous centers of development based on specific urban needs or activities.
a. the sector model
b. social area analysis
c. multiple nuclei model
d. sector model

Multiple Nuclei Model

Explanation:

According to my research on the different studies conducted by Chauncey Harris and Edward Ullman, I can say that the term developed being described by the information given in the question is called the Multiple Nuclei Model. This model explains that cities do not have a single nucleus but many separate nuclei each of which is its own growth point.

I hope this answered your question. If you have any more questions feel free to ask away at .

well 1 they have there leader that controls them

because the early people found out about it.