Question

fill in the blank 3 points. when a person feels scared, the nervous x system sends signals that activate the \fight or flight\ response. this causes the respiratory x system to increase breathing rate so that more oxygen x can be delivered to the muscles. carbon dioxide nervous

Explanation:

The nervous system triggers the "fight - or - flight" response. When this happens, the respiratory system increases the breathing rate to supply more oxygen to the muscles for increased activity during the stress response.

Answer:

The first blank should be "nervous", the second blank should be "respiratory", and the third blank should be "oxygen".