Final answer:
In a negative feedback loop, the initial signal is canceled out to maintain balance. The correct option is b.
Step-by-step explanation:
In a negative feedback loop, a crucial regulatory mechanism in biological and physiological systems, the initial signal is counteracted to preserve equilibrium.
When a system deviates from its set point, the response generated functions to negate the initial disturbance, thus restoring stability. This dynamic process ensures that internal conditions remain within a narrow range, promoting homeostasis.
Negative feedback loops are integral in various biological processes, such as temperature regulation and hormonal control, exemplifying nature's ingenious strategy to sustain balance by neutralizing deviations from optimal conditions through counteractive responses to maintain the overall stability of the system.