In which part adrenaline is produced?

Adrenaline increases

Figure 7.3 shows that the shape of a part of a long string in which transverse waves are produced. Which pair of particles are in phase?

Figure given above shows the part of a long string in which transverse waves are produced. Which pair of points is in phase?

The part of a transistor which is heavily doped to produced large number of majority carries is

How does our body respond when adrenaline is secreted into the blood?

The synthetic drugs structurally similar to adrenaline are: