What conclusion have scientists made based on these observations?

b is the best answer for this question.

the form of energy changes and the total energy increases0l

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.

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it