What is the reference you need?
Answer:
predictions are difficult to falsify
Explanation:
According to my research on the Darwin's theory of evolution, I can say that based on the information provided within the question this has been criticized because its predictions are difficult to falsify. This is because evolution is a process that centuries to happen, and since psychologists need to study the individual in order to analyze their mental aspects and determine whether they were actually passed on, it is nearly impossible to prove this right or wrong.
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A. improvements in public transportation.
Politicians and Administrators in the Political Process—A Review of Themes and Issues in the Literature