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.

[EX Q]: Question: How does the magnetic field produced by a current in a wire move? Answer: in concentric circles
[EX A]: The magnetic field produced by a current in a wire moves in concentric circles.

[EX Q]: Question: Which best explains why children resemble their parents? Answer: They have similar DNA.
[EX A]: Children resemble their parents because they have similar dna.

[EX Q]: Question: Contributing to the blood-brain barrier is one of the jobs of glial cells, which support neurons in what system? Answer: central nervous system
[EX A]:
Contributing to the blood-brain barrier is one of the jobs of glial cells, central nervous system support neurons in what system.