Cells of malignant tumors

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are confined only to a particular region

damage the the surrounding normal tissue

exhibit contact inhibition

do not migrate to other regions of the body

answer is C.

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Detailed Solution

The malignant tumors, on the other hand are a mass of proliferating cells called neoplastic or tumor cells. These cells grow very rapidly, invading and damaging the surrounding normal tissues. As these cells actively divide and grow they also starve the normal cells by competing for vital nutrients. Cells sloughed from such tumors reach distant sites through blood, and wherever they get lodged in the body, they start a new tumor there. This property called metastasis is the most feared property of malignant tumors.

Benign tumors normally remain confined to their original location and do not spread to other parts of the body and cause little damage.

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