Cell
It is the basic structural and functional unit of live.
Every organism is made up of the things tiny cell
C.) <span>Plants produce proteins much differently than animals.
Hope this helps!</span>
The answer would be the hardening of the myelin sheath. Multiple sclerosis is a chronic and inflammatory disease affecting the Central Nervous System and can cause a lot of symptoms like sensation changes, visual problems, severe fatigue and muscle weakness.
Partial or complete blindness depending on severity.