Multiple sclerosis (ms) is a disease that affects the nerve cells of the brain and the spinal cord. some of the symptoms of ms are chronic pain, pins-and-needles sensations, muscle weakness, and visual disturbances. study the image, and then explain the cause for these symptoms.

where is the image

explanation:

as soon as you give the image i will try my best to you

primary succession occurs in essentially lifeless areas regions in which the soil is incapable of sustaining life as a result of such factors as lava flows, newly formed sand dunes, or rocks left from a retreating glacier. secondary succession occurs