The first three. Multiple escapes, a safe meeting place, and practice
Answer: The integumentary system helps the immune system by The skin acts as a barrier to keep out pathogens (B)
Explanation:
C. Your behavior reflects that you have a powerful self, no being your self/free is a powerful self
Norepinephrine is released from sympathetic nerves, causing the heart rate to increase to higher values.
<h3>What is Norepinephrine?</h3>
Norepinephrine is a neurotransmitter (i.e., a chemical messenger) which is well known for sending information to the brain in order to increase alertness during some particular situation and also serve to constrict blood vessels.
In conclusion, norepinephrine is released from sympathetic nerves, causing the heart rate to increase to higher values.
Learn more about Norepinephrine here:
brainly.com/question/13753173
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