instruction:
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.
question:
Question: Which of the following sets contains only objects that shine as a result of reflected light? Answer: moons, planets, and comets
answer:
The setmoons, planets, and comets contains only objects that shine as a result of reflected light.


question:
Question: The concentration of hydrogen ions in a solution is called? Answer: acidity
answer:
The concentration of hydrogen ions in a solution is called acidity.


question:
Question: When food is scarce, starving cells secrete a molecule that stimulates neighboring cells to do what? Answer: aggregate
answer:

When food is scarce, starving cells secrete a molecule that stimulates neighboring cells to aggregate.