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: When Derek was in the hospital, his blood vessels had a larger diameter than normal, which meant that his body was running 
 Answer: warmer
[A]: Increasing the diameter of the blood vessels increases the amount of blood and heat that moves near the skins surface.


[Q]: Question: Peter removed salt to his juice one morning. The mixture became _____ dense. 
 Answer: less
[A]: If salt is added to a volume of water, there are more molecules in the same volume, so the water is denser.


[Q]: Question: If an elephant has more blood in its body then a wren, which animal has higher blood pressure? 
 Answer: elephant
[A]:
As blood volume in the body increases, blood pressure increases.