THIS IS URGENT CAN SOMEONE TELL ME THE ANSWER!?!?!

Choose any two countries in the world, and briefly discuss the evolution of the government of these countries.

Martha participates in a research study in order to receive extra credit for her psychology class. when she arrives in the research office she is given a can of what looks and tastes like beer, but which actually contains no alcohol. in the adjoining room martha's classmate karen is also participating in the study. karen receives a can of alcoholic beer. if the experiment was designed to test the effects of alcohol on concentration, then who is exposed to the independent variable?

Bea was under a great deal of stress at work, and her health had started to suffer. her doctor treated her using where bea had sensors attached to various parts of her body and watched her vital signs on a computer screen until she learned to relax.