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In a patient, a mass of cells removed fr...

In a patient, a mass of cells removed from the liver was found to be producing large amounts of the enzyme pepsin. In the same patient, a tumor was found in the stomach.
(a) What property of a tumor can be identified based on the statements above? Give a reason to support your answer.
(b) What are tumors exhibiting the property identified in (a) called? (c) How will the tumors identified in (b) affect liver cells?

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