Uncontrolled cell-division occurs when a process called contact inhibition fails. In healthy organisms, during this process, when cells come in contact with other cells, the process of cell replication ceases. How are cancerous cells different from normal cells?

Explanation

### Step-by-Step Solution:

1. **Understanding Cell Division**:
- In healthy organisms, cells undergo a regulated process of division known as mitosis. This process is tightly controlled by various mechanisms, including contact inhibition, which stops cells from dividing when they come into contact with neighboring cells.

2. **Contact Inhibition**:
- Contact inhibition is a crucial mechanism that prevents excessive cell growth. When cells touch each other, they receive signals to stop dividing. This helps maintain tissue architecture and prevents overcrowding.

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