Final answer:
Uncontrolled cellular division, often found in cancer, risks surrounding tissue by crowding it out, consuming necessary nutrients, and potentially damaging nearby organs.
Step-by-step explanation:
Uncontrolled cellular division poses a serious risk to surrounding tissue primarily because it crowds out healthy tissue. This unchecked division, characteristic of cancer, can lead to the formation of a mass known as a tumor. As cancerous cells divide at a much faster rate than normal cells, they consume nutrients and space necessary for the function of healthy cells. Additionally, these rapidly dividing cells can damage tissues and organs, which may alter the functioning of those organs and eventually lead to death.