What is the federal bureaucracy and what is its purpose?
a. the federal bureaucracy is the established court system that determines the constitutionality of laws and executive actions.
b. the federal bureaucracy is the various agencies and departments established to carry out the laws and functions of the executive office.
c. the federal bureaucracy is the name used when referencing all three branches of government at the same time.
d. the federal bureaucracy is the the representative body that elects the president.

Responses will vary. A sample response follows:

The federal bureaucracy is large network of government agencies, commissions, and employees that have a common goal: to serve the citizens of the United States of America. The federal bureaucracy is specialized, hierarchical, and formal. That is, the different agencies and commissions have specific jobs (specialized), there is an established power order within the agencies (hierarchical), and all operate under strict rules called standard operating procedures.

Explanation:

jewish people, gypsies, and political opponents.

answer:   migrations were important in the neolithic period. "two major migrations passing through southeastern europe were confirmed by the means of archaeo-genetic studies."

the first migration was the early neolithic period -- 6,000 before common era (bce) -- when the first farmers, from anatolia -- asia minor -- spread through europe. the second migration occurred during the early bronze age (3,000-2,500 bce) when the so-called "steppe population," from the eurasian steppe, replaced much of northern europe's previous population.

the first farmers of northern and western europe passed through southeastern europe with limited hunter-gatherer genetic admixture, which occurs when two or more previously isolated populations begin interbreeding. however, some groups that remained mixed extensively -- without the male-biased, hunter-gatherer admixture that prevailed later in the north and west, according to latest discoveries. southeastern europe continued to be a nexus between east and west, with intermittent genetic contact with the steppe people up to 2,000 years before the migrations that replaced much of northern europe's population.

"in some places, hunter-gatherers and incoming farmers seem to have mixed very quickly," says iain mathieson, a geneticist at the university of pennsylvania, who was first author of the paper. "but, mostly, the two groups remained isolated, at least for the first few hundred years. these hunter-gatherers had been living there for thousands of years, and it must have been quite a shock to have these new people show up -- with a completely different lifestyle and appearance."