You are watching a horror movie. the music changes to the familiar tune you recognize as a prelude to danger. you tense up, your heart rate increases, your breathing becomes shallow, and your mouth is dry. which branch of the nervous system has been activated?

Sympathetic nervous system is activated in this situation.

This branch of nervous system is activated when any individual encounters stressful or dangerous situation.This is responsible for 'fight or flight' response.

It takes place by activating adrenal gland which releases specific hormones adrenaline and nor adrenaline also called as catecholamines . These hormones are responsible for the appropriate physiological response to the situation.

identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.identify the dna change shown in the diagram and explain how that change can result in the increased genetic diversity often seen among siblings.v