Which of the following is NOT a post-death process?

Necrosis refers to the process of death or damage to cells and tissues that occurs while an organism is still alive, often as a result of injury, infection, or lack of blood supply. It is a pathological condition that happens prior to death and is not a post-death process. In contrast, rigor mortis, algor mortis, and livor mortis are all post-death changes that occur after an individual has died.

Rigor mortis describes the stiffening of muscles that happens due to chemical changes after death. Algor mortis refers to the cooling of the body following death, and livor mortis involves the settling of blood in the body, creating a distinct pattern on the skin. These processes are critical for medical death investigators to understand as they assist in determining the time of death and the circumstances surrounding it. Therefore, necrosis does not belong in the category of post-death processes, making it the correct answer.