What is the difference between nomads and hunter-gatherers of ancient times

What is the role of institutions in society - do they perform positive functions, or simply work in the interests of the powerful and against the powerless? (a related question here is why do our life chances vary by class, gender and ethnicity)

The war powers act, passed in 1973, was a measure by congress intended to?

In two to three sentences, explain the makeup of the country of israel and how its citizens have influenced the country. no !