Final answer:
Not all tumors are cancerous. Benign tumors are non-cancerous, while malignant tumors are cancerous and can spread.
Step-by-step explanation:
False. Not all tumors are cancerous. Tumors can be either benign or malignant. Benign tumors are non-cancerous and do not spread to other parts of the body. Malignant tumors, on the other hand, are cancerous and can invade nearby tissues and spread to other parts of the body.
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