Tumors can also use the immune system to stay alive and grow.
My first and strongest connection with this statement goes back to when the class discussed viruses. There are things that are alive and things that are dead. The exception is viruses, which as a means to stay (for better or worse ways to word it) stay alive- so to speak, they latch on to hosts, multiply, and spread. I had a question though. I've been told that the reason why curing cancer is so difficult is that since the cells in cancer changes, which makes any medical treatment hard enough, my question is if cancer was to not change, and stay the same form of cells that is is, would a cure have been made long ago.