Which of the following are true about cancer?Check all that apply.

Cancer cells divide uncontrollably and do not obey contact inhibition, the normal tendency for cells to stop dividing when they touch neighboring cells. They can invade healthy tissue and, in many cancers, spread to other parts of the body. Cancer includes many different diseases and forms; it is not contagious and does not affect only elderly people.

AI-written and checked against the verified answer.