Stress is the force applied to a rock, which may cause deformation. The three main types of stress go along with the three types of plate boundaries: compression is common at convergent boundaries, tension at divergent boundaries, and shear at transform boundaries.
Mitosis the first opening
The answer to this problem is "Dopamine Receptors". Hence, when Nicotine ultimately stimulates dopamine neurons, which are the implicated in the reinforcing and pushing the effects of smoking habits. The dopamine which is chemically released by the neurons or nerve cells and it gives a signal to other neighboring nerve cells.