What is the difference between normal tissue and cancer

Cellular communication is an important aspect in cancer prevention because a group of cells growing rapidly can be recognized and halted before given the chance to grow out of control. It is well known that in a cancerous cell, one of the first mutations to occur is in its ability to communicate with its surroundings. In absence of this characteristic cells are able to grow rapidly and invade surrounding tissues even though they may be receiving, but not processing appropriately, external signals to halt growth.

a "theory" a suggestion that is not 100 % accurate, or a figure. some people say its a theory because they of all the passed theory's about one subject. it depends sometimes theory might be accurate and sometimes they are.

explanation:

okay now i don't know this but for the pints nothing else to say bye