Answer:
the foot-in-the-door phenomenon.
Explanation:
It is a strategy in psychology and it is used in order to make someone do something we ask from them. The one who persuades another, picks a simple thing at first and that way, makes sure that they will do the same when a bigger thing comes along. Why is it important, because if we asked from them a '' bigger favor '' at first, they would not agree. An example: Sarah asked Tina to steal a candy. She said yes. A few days later, Sarah said she would like Tina to steal an expensive dress for her, and Tina said yes.
Emergency care, tests for vision, hearing etc, and promote health education
They permit a production of the large amounts of proteins and enzymes needed for muscle contraction.