Answer:
Homologous features
Explanation:
If two or more species share a unique physical feature, such as a complex bone structure or a body plan, they may all have inherited this feature from a common ancestor. Physical features shared due to evolutionary history (a common ancestor) are said to be homologous.
Well, (not trying to plagiarize) the client is expressing their fear of surgery, and this is from the body's reaction to danger (emotionally and physically).