His immune system is using the first line of defense. His body is using purging methods that is caused by irritation of the hairs in his nose. This defense system<span> uses physical and chemical barriers that are prepared to defend the body from infection.</span>
Answer: C. to move around from one setting to another.
Explanation: When writting nonfiction, the author have to be well plotted such that such makes and give his writing more freedom in moving around form one setting to another.
Health - related fitness.
I hope this helped :)
Flushed skin C. Hope I helped! :D brainliest?
The best answer for the blood vessels' valves would be these are veins that would then help in preventing the back flow of blood because the walls have small muscle to pump the blood back to the heart.Hope this is the answer.
