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What is a cancerous tumor called?

  1. Cartilage

  2. Carnivore

  3. Carcinoma

  4. Catalyst

The correct answer is: Carcinoma

A cancerous tumor is not called Cartilage as it is a type of connective tissue, while the tumor is a mass of abnormal cells. A Carnivore is an animal that feeds on meat, and it is not a term used in medical jargon. Similarly, Catalyst is a substance that increases the rate of a chemical reaction, and it does not refer to a tumor. Carcinoma is the correct answer because it refers to a malignant tumor derived from epithelial cells, which is characteristic of cancer.