Alma is walking in a park. Suddenly, a wild dog charges toward her. Alma is frightened. The what nervous system is used?
starts to respond by increasing her heart rate and dilating her pupils. After running for a few minutes, Alma realizes that the dog has fallen far behind. At this point, her what nervous system is working?
starts working to relax her body by slowing down her heart rate and constricting her pupils.
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Answer:
Central Nervous System
Explanation:
Reflex arc acts on spinal cord which is CNS
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