There are many differences between a monarchy and a democracy, the main one being that a monarchy bestows the power to make decisions and laws. In a democracy, the people of a nation hold some powers of government.
In a monarchy, there are not separate branches of government, as the monarch contains all of the power needed to rule the country. Democratic governments have branches of government that handle different issues that arise within the country. For instance, the United States is a democracy and it has the judicial branch, the legislative branch and the executive branch. Another difference is that a monarch typically holds the ruling position for life, while officials within a democracy are elected for limited terms.