5) how are parkinson's disease and als similar?
a) both diseases are communicable.
b) both diseases affect muscle control.
c) both diseases can be prevented with vaccines.
d) both diseases are caused by an unhealthy lifestyle.

B) because Parkinson's disease make the muscles "shake" and ALS weakens the muscles.

what statement best describes the difference between the sympathetic and parasympathetic nervous systems?

the sympathetic nervous system prepares the body for intense physical activity and is often referred to as the fight-or-flight response. the parasympathetic nervous system has almost the exact opposite effect and relaxes the body and inhibits or slows many high energy functions.