What might happen if people take antitbiotics when they don’t need them

They will build up immunity against the antibiotics

Explanation:

The human body might take the antibiotics and learn how to protect it's self against it, because it can't use it for anything. Then when you really need to use the antibiotics it won't work because your body has become immune to it's effects.

the characters in string all have major secrets that they strive to avoid revealing throughout the play.

the symbol of the grandfather's heritage in this excerpt from "the medicine bag,” is the beaded bolo tie.

a bolo tie is a cord fastened around the neck with an ornamental clasp which is worn as a necktie. they have been used by native american tribes such as hopi, navajo, zuni, and puebloans since the mid-20th century.

therefore, the fact that the grandfather is wearing a bolo tie refers to his heritage as native american.