How did the domestication of plants and animals affect agrarian societies?

The domestication of plants and animals was a crucial development for humans since it allowed them to have a surplus of food--this allowed people to focus their efforts elsewhere and have other jobs and skills.

Answer

domestication of plants and animals affect agrarian societies by creating a surplus of food which means not every one had to farm and people became skilled in other labors.

Explanation.

An Agrarian society is a society which runs its economy on agriculture by producing and maintaining crops and lands for higher produce.

Domestication of plants and animals brought total change in the agrarian society.

Most people lived nomadic life. Fruits, roots and animal meat was their food. Until the time they learned domestication of plants and animals and they settled in a place and they formed a society.