The funnel-like shape of the external ear enables it to collect waves, which travel down the ear canal. frequecy

radio

sound

electric

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.

a. to encourage apoptosis