Answer: stimulus
The students reaction is explained by the theory of classical conditioning first coined by Ivan Pavlov. The students are conditioned to associate the doer closing with the pop quiz and respond accordingly. Pavlov used dogs and their response to ringing a bell every time their food was served, after a some conditioning the dogs would salivate at the sound of the bell regardless of whether or not food was present. The bell was the stimulus.
I believe it is the african americans because people were prejudiced against both groups of people.
The correct answer here is: "at large", as in "at large election" - option C.
An election "at large" refers to an election that chooses representatives to represent the whole body - rather than just a part of this body, as as a district.
The opposite is voting by electoral districts.
Answer:
Attention cannot truly and fully be split between separate tasks.
