Answer:
The word "operant" should be changed to the word "classical."
Explanation:
In the sentence, the word operant refers to organisms whose behavior is spontaneous rather than a response to stimulus, and which reinforces the reccurence of such behavior. However, the adjective classical applies to exemplary standard or coventional organisms. Thus, classical organisms concern organisms in general which, in this case, relate events that occur over and over again.
