Signals are words or phrases that you understand what you are reading.

Humphreys collecting data for the tearoom trade study under the pretense that he was a lookout is an example of a violation of the principle of: a. justice. b. beneficence. c. respect for persons.

Germany's black forest is being destroyed as a result of which environmental issue ?

Acurb of this color means you may not stop a) yellow b)green c) red d) blue