When a parent observes the parent's young child heading toward a busy road the parent becomes stressed, feeling the parent's heart pounding, breathing heavily, and hands becoming wet with perspiration. which physiological system is activated with the parent's "fight or flight" reaction to this danger?

Sympathetic Nervous System

Explanation:

The sympathetic nervous system is the system that activates the fight or flight condition. Like other parts of the nervous system, the SNS operates through a series of neurons.  

the earthquake in haiti was a magnitude of 7.0 according to the u.s geological survey yet the smaller earthquake in haiti killed more than 200,000 and left more than 1.2 million people homeless. the chile earthquake was a magnitude of 8.8 and 500 times more stronger but chile's earthquake only injured 712 people.

could you show the options for the answers? : )