The fight-or-flight mechanism in humans is triggered only when an immediate threat is perceived. Once triggered, a series of finely tuned steps is orchestrated by the brain and carried out by various parts of the body. Why is the fight-or-flight mechanism classified as homeostasis?
a. When the brain senses an immediate threat, the homeostasis system relies on osmosis and diffusion to balance out internal conditions and keep them stable.
b. This is an example of homeostasis because the body responds to the stimulus by increasing blood flow to parts of the body that need it to prepare for the fight-or-flight mechanism.
c. It is homeostasis because the body maintains a stable internal condition when it activates the sympathetic nervous system to boost energy levels, and then it activates the parasympathetic nervous system to bring energy levels back down.
d. This is an example of homeostasis because it involves survival, and the homeostasis system is focused on survival.