The royal families in the united kingdom, sweden, spain, and the netherlands are present-day examples of:

The royal families of United Kingdom, Sweden, Spain, and of the Netherlands are existing examples of Monarchies. A monarchy is a system of a government, wherein a family on behalf of a dynasty, represents the nation's nationwide distinctiveness, while the leader, the crowned head, exercises the role of authority.

might be agreeing to participate ethically with other european nations in the slave trade

or notifying other european nations when taking possession   of african territories

legislative branch:

one of the three branches of government divided between the senate and the house of representatives.

- creates or makes laws

- power to override a veto

executive branch:

one of the three branches of government, headed by the president.

- enforces or carries out laws

- power to veto a bill sent to it by congress

judicial branch:

one of the three branches of government, headed by the chief justice of the supreme court.

- interprets laws

- power to declare laws or actions by the government unconstitutional