Leo and Mindy have just tasted a salad. Leo maintains that the greens in the salad are very bitter, while Mindy continues to enjoy the salad. Their different reactions seem to be a result of differences in the types and numbers of taste receptors, which causes them to have different .

experiences

Explanation:

Based on the scenario being described within the question it can be said that these differences caused them to have different experiences. These extra/more taste receptors allow Leo to pick up the bitterness of the greens in the salad which caused him to have a bad experience when eating the salad while Mindy's lack of these receptors allowed her to have a pleasant experience because she did not taste the bitterness.