What happened once early clan families became larger and more extended groups ?

"Once early clan families became larger, more extended groups, they formed into a unit of community or village."

Explanation:

the anterior pituitary gland produces the following hormones and releases them into the bloodstream: psychotropic hormone, which stimulates the adrenal glands to secrete steroid hormones, principally cortisol. growth hormone, which regulates growth, metabolism and body       hope i