Charles has been thinking about a friend who told him she has been diagnosed with multiple sclerosis. Charles knows from psychology class that multiple sclerosis causes damage to , which can lead to fatigue, trouble with vision, and cognitive disabilities.

myelin protective sheath that covers the nerve fibers (myelination)

Explanation:

Multiple sclerosis (MS) is a potentially disabling disease of the brain and spinal cord (central nervous system). In MS , the immune system attacks the protective sheath (myelin) that covers nerve fibers and causes communication problems between your brain and the rest of your body.

false

true

true

false

true

jefferson hoped to establish trade with the native american people of the west and find a water route to the pacific. jefferson also was fascinated by the prospect of what could be learned about the geography of the west, the lives and languages of the native americans, the plants and animals, the soil, the rocks, the weather, and how they differed from those in the east.

answer; (true);