The answer is methods of observation. Observational Methods in mental research involve the perception and portrayal of a subject's conduct. Scientists using the observational technique can apply fluctuating measures of control over the earth in which the perception happens.
Answer:
An earthquake that isolates a population of rodents on a mountain from other populations of rodents
Explanation:
That is a simile because you are saying you are like something. It means that you will fall down easily like a domino would if you knocked it.