Answer:
The correct answer is <u>conducting a controlled experiment.</u>
If your lymphatic system stopped working properly fluid would build in your tissues and cause swelling. You could get infections, blockage and even cancer. If your immune system stopped working properly too then you would most likely die. Since your lymphatic system is down and your immune system is down it would weaken your body tremendously meaning the smallest cold could cause death.
By Antibodies and Plasma cells
Basically a mental and or physical break down.
True, we can cure things that we couldn't before. Even things like the common cold used to be deadly.
