Final answer:
A negative feedback loop is the type of feedback that prevents a system from generating too much output by reducing excessive responses and keeping variables within their normal ranges. It operates in the opposite direction of the stimulus, providing stability to systems like hormone levels or body temperature regulation.
Step-by-step explanation:
The type of feedback that prevents a system from generating too much output is known as a negative feedback loop. This control mechanism operates by reducing an excessive response and maintaining a variable within its normal range. For instance, in biological systems, such as the endocrine system, the synthesis of certain hormones is controlled by negative feedback loops to prevent overproduction.
Negative feedback involves a reaction to a stimulus in the direction opposite to the stimulus; it performs a corrective action that leads to stability. An example is the feedback inhibition in cellular processes where the product of a reaction inhibits the further production of itself, thereby avoiding waste and potential toxicity.
Another illustration of a negative feedback loop is the regulation of body temperature or blood glucose levels. These processes are designed to bring the variable (temperature or glucose levels) back to a set point when they deviate from the normal range. By doing so, negative feedback loops ensure the stability of the system's internal environment.