Answer:
In this research, psychologists used twin studies to study the impact of genetics on human behavior. Researchers are trying to examine the question of how much influence genes have in determining personal psychological qualities. This research grew out of a need for a scientific method to separate genetic influences (nature) from environmental forces (nurture) on people’s behavior and personality. Their findings indicate that genetic factors (or the genome) appear to account for most of the variations in a remarkable variety of human characteristics.
Explanation:
Explanation:
The aggregate demand curve is downward sloping. It implies price levels are falling and the quantity of output will increase as well as the domestic income. The theories that can explain why the aggregate demand curve is downward sloping: the Pigou's wealth effect, the Keynes's interest-rate effect, and the and Mundell-Fleming's exchange-rate effect.
