I think it might be 8??????
The answer is viruses change their form when the immune system knows how to kill it and thats how they trick the immune system and viruses are much smaller than bacterias
Answer:
C
Explanation:
When your heart rate speeds up, you usually get hotter and start sweating, when you are exercising. This might take hours for you to realize because it happens so slowly. Fluid flows and your bloodstream goes a lot smoother, which can help lower the chances of blood clots. This is all because of a warm-up.
Allergic bronchopulmonary aspergillosis