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.

Example Input: Question: Sandra is in a dark building and then suddenly goes exits onto a sunny street. Sarah's pupils will do this in response to the new bright light 
 Answer: shrink
Example Output: The pupil automatically gets bigger or smaller to let more or less light in as needed.

Example Input: Question: Tony wanted to prevent cramps by not warming up. This _____ blood flow to his muscles. 
 Answer: decreases
Example Output: Warming up exercises increases the blood flow to the muscles and increases the heart rate.

Example Input: Question: If Mona takes a pot of water off of the stove and it begins to cool down, what happens to the rate of evaporation of that water? 
 Answer: decreases
Example Output:
The higher the temperature of the liquid, the faster it will evaporate.