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How are cancer cells different from noncancerous cells?
A. Cancer cells do not contain DNA; therefore, the body cannot regulate their growth and division.
B. Cancer cells do not respond to the normal signals that shut down the cell division process.
C. Cancer cells are neither recognized nor destroyed by the body's immune system.
D.Cancer cells grow to extremely large sizes, forming tumors that block the flow of blood.

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Answer:

B

Explanation:

Cancerous cells grow out of control because they do not receive the signals to stop grow. This causes tumors to form, and continue growing until treated.

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