At the moment of death, all the muscles in the body relax, including the rectal and urinary muscles. So yes when we die we defacate as well as urinate. You do when you have food in your digestive system. When you die, Everything just comes out.
Human cells die before a human dies. This is because they are either too damaged or not needed anymore. However, when a human dies, then all cells that were functioning up to the point of death will...
If you died in a dream and are alive to ask this question then you already have your answer. (edit) It depends though. Just last night, my friend had a dream that she died, and right afterwards, she...