The answer is D. Just go and look up the definition on google and it will give you your answer.
This new skill development is a good example of<u> "plasticity."</u>
Plasticity refers to the capacity of the brain to change and adjust to new data or information.
Brain plasticity is the capacity of the mind to adjust its associations or re-wire itself. Without this capacity, any mind, not simply the human cerebrum, would be not able create from outset through to adulthood or recoup from mind damage.
<span>I think the fact that there was no single ruler in the stateless societies allowed them to endure for many centuries. No family had too much power than the others. The way they resolved their problems also helped them survive for a long time since it allowed them to peacefully talk about the issue without violence. They also had a very organized way to decide to who to pass down the possessions and property too. People were also separated into age-sets where they would pass stages of life with other people in the same generation.</span>
Yes it can, . .. technically, a nation-state can be defined as a political unit., since a nation-state has a group of people that gathered under a same government that has its own policy that the people has to follow in their day to day life.
hope this helps