Which of the following describes unusual cell growth that is cancerous?

The term that describes unusual cell growth that is cancerous is malignant. Malignant cells have the ability to invade surrounding tissues and spread to other parts of the body, which is a defining characteristic of cancer. This kind of growth is not only abnormal but also uncontrolled, leading to the potential for serious health complications and the need for treatment such as surgery, chemotherapy, or radiation.

Benign growths, on the other hand, are non-cancerous. While they may still cause health issues, such as pressure on surrounding structures, they do not invade other tissues or metastasize. Necrosis refers to the premature death of cells or tissue, which can occur due to factors like lack of blood flow or infection, but it does not describe a cancerous condition. Monosaccharides are simple sugars and have no relevance to the description of cell growth. Thus, identifying malignant as the correct answer is crucial for understanding the nature of cancerous growth versus other types of cell behavior.