In this task, you are given a question and an answer, you would be asked to create the sentence based on the Question-Answer provided. It should be contained within the Question-Answer provided.

[Q]: Question: Which kind of muscle regulates air flow in lungs? Answer: smooth
[A]: Smooth muscle regulates air flow in lungs.


[Q]: Question: What is it called when two waves combine to create a larger wave? Answer: constructive interference
[A]: Constructive interference is when two waves combine to create a larger wave.


[Q]: Question: What is the diploid number for fruit flies? Answer: 8
[A]:
8 is the diploid number for fruit flies.