Where is power transferred by inheritance, and where is a single ruler elected, in a monarchy and a republic?

Naturally, power is inherited when the main form of government in the state is monarchy. When a republican form of government is in effect, then one ruler is elected by popular vote. Mainly monarchies existed in the Middle Ages, and the republican form of government became popular in later periods.

One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.