In a city study about recycling, researchers found that of the 148,227
residents participating in the program, 72% responded that they would prefer
that newspaper and plastic be picked up on the same day. this is an example
of

Step-by-step explanation:

Notice that the paragraph is describing some results they got of a recent survey. That is, they are giving specific statistical data about what people prefer.

So, this is an example of descriptive statistics. Remember that descriptive statistics is about using means, medians, standard deviation, percentages or any other stats that help to describe a phenomenom.

Therefore, the right answer is D.

homozygous. one is homozygous, while two is heterozygous.