An atom.
Mark brainliest?
<h2>HOPE THIS HELPS!</h2>
Answer:
I think D is the pairs of cognate
The correct choice is increases your heart rate and respiration.
Your sympathetic nervous system increases your heart rate and respiration when confronted with a stressful event.
sympathetic nervous system also mobilizes body for action, increases breathing and sweating, makes pupils dilated ad lastly decreases stomach's activity.
The answer is B i hope this helps