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.

Input: Consider Input: Question: Asa is running in a race and his body temperature decreases. His skin's blood vessels _____ in diameter. 
 Answer: decrease

Output: When your brain senses that your body temperature is increasing, it sends messages to the blood vessels in the skin to increase in diameter.


Input: Consider Input: Question: Reed saw a cell through a microscope. He sees a cell has less visible mitochondria than the rest. This cell likely is _____ active compared to the others. 
 Answer: less

Output: Cells that are very active would typically have more mitochondria than cells that are less active.


Input: Consider Input: Question: An _____ pulse rate is a sign of more oxygen to cells. 
 Answer: decreased


Output: This causes the delivery of less oxygen to the cells, and this stimulates the heart rate via adrenalin, so that pulse rate increases in an effort to deliver enough oxygen to cells.