Loss of a spouse or companion can cause depression

You are first on the scene of a two-car motor vehicle collision. In one car there are two patients entrapped in the vehicle, while in the other, there is a male driver complaining of chest pain. Your primary concern is:

A) triaging the patients. B) calling for additional help. C) assuring personal safety. D) determining severity of injuries.

Which of the following statements best describes homeostasis?

a. Constant interstitial environment b. General stability of internal environment c. Instability of the cellular environment d. Labile environment