James got sick with an infection called bronchitis. He coughed a lot and had trouble breathing. After a week, James started to feel better and could breathe more easily. James' system was most harmed by the bronchitis, and his system helped him recover.

The answer is respiratory, then immune

Explanation:

His respiratory system was most affected since he had trouble breathing.

The immune system is what fights off diseases, hence the immune system was able to help him recover.

James got sick with an infection called bronchitis. He coughed a lot and had trouble breathing. After a week, James started to feel better and could breathe more easily. James Respiratory system was most harmed by the bronchitis, and his Immune system helped him recover.

Explanation:

I had a Flocabulary on this

currents is the correct answer.

answer; endoplasmic reticulum;