What is death?

The following is an excerpt from Louis Pojman's book Life and Death (1992), pp 158-164. It discusses criteria for death as well as organ transplantation. I strongly disagree with Pojman on these matters. However, he gives a decent enough summary of the main categories for death and related issues that I'll quote it here. In addition, Pojman's argument (which was made in 1992) doesn't seem substantially different from how progressive ethicists argue today. I'll have to interact with Pojman at a later time.