In this task, you are given a question and answer for that. The answer will fill in the blank or will complete the unfinished question. Your task is to provide an explanation based on the given question or fill-in-the-blank statement, and answer.

[Q]: Question: John was in his office looking at the diagrams. He saw that as the lines were sparser, the fields were
Answer: Weaker
[A]: The closer the field lines are drawn together, the stronger the field being described.

[Q]: Question: When Mike has low blood pressure, Mike knows that the volume of his blood is
Answer: low
[A]: This is because the lower blood volume in the vessels exerts less pressure on the vessel walls.

[Q]: Question: Eric notices an increase in antibiotic resistance in a certain bacteria. The mutation that causes the resistance has become _____ common
Answer: more
[A]:
Bacteria with a mutation the helps resist antibiotics increase in numbers, so the mutation becomes more common.