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.

Question: If an animal is able to eat food more difficult is it more or less likely to reproduce? 
 Answer: less
Natural selection is the process by which living things with beneficial traits produce more offspring, so their traits become more common over time.

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
Increasing the diameter of the blood vessels increases the amount of blood and heat that moves near the skins surface.

Question: John has a diamond that is the same size as a beach ball. Which is likely denser? 
 Answer: diamond

A given volume of a denser substance is heavier than the same volume of a less dense substance.