Biology

The correct answer is: D.The signal initiates feedback loops that lead to cellular arrest.

Explanation:

When the body receives a signal to stop a process like cell division or gene expression, it typically triggers feedback mechanisms that arrest or halt the process. For instance, during cell division, checkpoint proteins may be activated to stop the cycle if DNA is damaged. Similarly, in gene expression, repressor proteins can prevent transcription from occurring.

Why the other options are incorrect:

A.The signal enhances metab...