When playing defense you should always keep your "aligned with the" ball?

The graph below shows how the price of wheat varies with the demand quantity. suppose that lower production costs increases the supply of wheat, such that more wheat is supplied at each price level. the new equilibrium price (after the increase in supply) is

Why is it economically necessary for the east germans to build berlin wall

Experiment to investigate effect of medication on levels of stress in males and females. dependant variable?