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Which of the following has the lowest level of organization? Pia mater Norepinephrine Nerve Epineurium

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Answer:

Norepinephrine.

Step-by-step explanation:

Norepinephrine is a neurotransmitter, which is a type of chemical messenger in the nervous system. It is involved in the transmission of signals between nerve cells. However, regarding organizational levels in the body, norepinephrine represents a molecular level of organization.

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