Answer:
Areas where the myelin sheath has degenerated
Explanation:
Multiple sclerosis is a disease of the nervous system where the myelin sheath is damaged, and impairs its ability of conducing signals in the affected nerves, causing serious deficiencies in many life aspects (movements, sensations, cognition etc).
The cardiovascular system I think. Hope this helps
Cardiac muscles are involuntary muscles that can be found along the heart.
Skeletal muscle are voluntary muscles that help us walk lift and run.
I believe the answer is D, as we can reproduce and we have to be the same biological species to do that
Answer:
The answer is that they both happen
Explanation: