What stimulates the central nervous system?
nicotine exercise a chime Energy A computer sweating a doorbell acetic acid
A B C D E F G H
Like caffeine, nicotine is a stimulant.
nicotine affects he central nervous system
What stimulates the central nervous system? (A) nicotine (B) exercise (C) a chime (D) Energy (E) A computer (F) sweating (G) a doorbell (H) acetic acid