Answer:
Nicotine affects the pleasure centers of the brain, making it addictive.
People have to increase their nicotine use over time to receive the same effects.
Stopping use leads to a tired feeling
Explanation:
Nicotine is a brain stimulating alkaloid found in tobacco and other plant products. It is the primary component that acts on the brain. It is the heavily addictive drug. It stimulates the brain centers and reduces sleep. But when the intake is cut it shows opposite withdrawal symptoms like tired feeling. It develops the tolerance that is people increase their dose over time to receive the desire effect. It can be chewed orally or can be smoked.
Answer: They are found in babies.
Answer:
D. Carl Hull
Explanation:
Carl L. Hull came up with the Theory of drive-reduction. He proposed that motivation is triggered by biological needs for survival. When an individual feels unwell for example, he will find ways to reduce the unpleasant state that they are in. The person is driven by the need to reduce the feeling, that's why it's called the drive-reduction theory.