Homeostasis is the maintenance of a constant internal environment (the immediate surroundings of cells) in response t changes in.
Homeostasis is a self adjusting mechanism involving feedback where the response to a stimulus after the internal conditions and may it self become a new stimulus.
Homeostasis is maintained by feedback mechanisms. Feedback mechanisms are the general mechanism of nervous or hormonal regulation in animals. Essentially, feedback occurs when the response to a stimulus has an effect of some kind on the original stimulus.