Asociologist studies children at a day care center. she must get approval from an ethics board because children are a population.

Protected

Explanation:

Protected population is group of people who are protected through various measures of regulation in special way in terms of sociology.This population is considered as vulnerable and thus it is critical situation to include this category in research process as they can be forced for research benefit.This process consist of children, pregnant women ,prisoners etc.

According to the question, for including children in sociological research , sociologist must taker permission from ethic board department as children are considered under protected population.

political parties perform an important task in government. they bring people together to achieve control of the government, develop policies favorable to their interests or the groups that support them, and organize and persuade voters to elect their candidates to office.

explanation:

the united states constitution is the supreme law of the united states. the constitution, originally comprising seven articles, delineates the national frame of government. its first three articles embody the doctrine of the separation of powers, whereby the federal government is divided into three branches: the legislative, consisting of the bicameral congress; the executive, consisting of the president; and the judicial, consisting of the supreme court and other federal courts. articles four, five and six embody concepts of federalism, describing the rights and responsibilities of state governments, the states in relationship to the federal government, and the shared process of constitutional amendment. article seven establishes the procedure subsequently used by the thirteen states to ratify it. it is regarded as the oldest written and codified national constitution in force.