Answer: a piece of candy at various times.
Explanation:
Variable interval (VI) schedule is the mechanism of operant conditioning for reinforcement scheduling.In this process response is imposed with reinforcement with particular amount passage of interval or gap.This mechanisms has variable schedule for time.
According to thew question, Lisa should implement the Variable interval (VI) schedule by providing participants with the candy at changing time in 10 hours of time period.Thus,it will help in better reinforcement of response in her experiment.
Scientific knowledge is empirical.
<h3>What is scientific knowledge?</h3>
These are established knowledge, used to explain a behavior of interest, which are of great importance to humanity.
It is to be noted that that scientific knowledge are empirical because they evolve over time as they evaluate current realities and explanations as new data and technology become available.
Learn more about scientific knowledge here: brainly.com/question/13159281
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The main purpose of the Mounds was burial: the Mounds were a burial site for some distinguished people, such as kings. Other possible purpose was for ceremonies (ceremonies performed on top of the mound).
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From my understanding I would definitely go with
Answer : B , Continent