A. chemicals, the constriction of the pupil are usually caused by opiates anti-hypertension drugs.
The central nervous system is made up of the brain and spinal cord. The peripheral nervous system is made up of nerves that branch off from the spinal cord and extend to all parts of the body. Have a good day!!! Pls mark brainliest if helps!! :)
Prokaryotic And Eukaryotic :)
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