Final answer:
A change in direction in response to a small failure is called negative feedback.
Step-by-step explanation:
A change in direction in response to a small failure is called negative feedback.
Negative feedback is a regulatory mechanism that helps maintain stability and equilibrium in biological systems. It involves sensing a deviation from the desired state or goal and initiating corrective action to bring the system back to its original state.
An example of negative feedback in biology is the regulation of body temperature. When body temperature rises, thermoreceptors in the skin and brain detect the increase and send signals to the hypothalamus, which activates cooling mechanisms like sweating to lower the temperature back to the set point.