Human beings generally have an aversion to bitter and sour foods. Some researchers suggest that this is because foods that are inedible or even poisonous are often bitter or sour. The tendency of human beings to find these potentially harmful foods repulsive is an example of
A) classical conditioning.
B) vicarious conditioning.
C) a conditioned emotional response.
D) a biological predisposition.
E) an instinctive drift.

Question

Quizplus · Accepted Answer

Human beings' aversion to bitter and sour foods is believed to be a biological predisposition, as these tastes are often associated with potentially harmful substances in nature. This aversion is likely an evolutionary adaptation that helped our ancestors avoid ingesting toxic substances.

Human Beings Generally Have an Aversion to Bitter and Sour