Observational studies, such as the study that demonstrated that people who eat a Mediterranean diet live longer, healthier lives, are able to demonstrate cause and effect between two variables just like a well designed experiment.

True/False

What does Japan's new constitution say about Japan's involvement with war?

The student union is holding its weekly friday night "de-stress 'til dawn" mixer. brandon is hungry, shelby is tired, and tina feels cold. which brain structure controls the internal biological clocks responsible for regulating these processes?

Which goal of the populist party led to its early popularity?

Which group of people did not gain its freedom until months after the Civil War?

How were religion and learning linked in mayan society?

What is inflation? A.) an increase in the supply of currency that reduces the currency's value B.) a demand for more goods than can be met by production C.) an increase in unemployment due to a serious recession D.

By decrease in the supply of labor what tends to happen? (Select all that apply) A. Decrease income B. Increase income C. Increase prestige D. Decrease power E. Increase power

What are two ways nation-states could solve a dispute

What made americans cautious about playing too much power in the hands of a single ruler?

How did the plebians gain more power in Roman government