In a study cited in the text (mennella et al., 2001), infants exposed prenatally to the flavor of carrots showed fewer disapproving facial expressions when fed carrot-flavored cereal than did unexposed infants. in this study, the number of disapproving expressions is a(n) definition of liking for carrots.

operational                      

Explanation:

The answer is "operational".

The infants who are already exposed to carrots prenatally in the womb showed fewer disliking for carrot than those babies who are not exposed to carrots earlier.

Thus those babies who are exposed to carrots prenatally shows an operational liking for carrots because they are already exposed to the taste of carrots.

Thus the answer is ---  operational.    

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- "milgram's work was conducted in the early 1960s before the current.the studies ignited a debate about the ethical treatment of participants. what appear to be dangerous, if not deadly, electric shocks and the by today's ethical standards, many questions about the research have gone unanswered."

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