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 there are very few wolves the deer population will
Answer: increase
An increase in predators, the emergence of a new disease, or the loss of habitat are just three possible problems that will decrease a population.

Question: Asa is running in a race and his body temperature decreases. His skin's blood vessels _____ in diameter.
Answer: decrease
When your brain senses that your body temperature is increasing, it sends messages to the blood vessels in the skin to increase in diameter.

Question: As we release the air from a balloon the number of reactions in the balloon
Answer: decrease
At higher concentrations, particles of reactants are crowded closer together, so they are more likely to collide and react.