Final answer:
A positive feedback mechanism is a biological process that amplifies changes and drives the system further away from equilibrium, contrary to negative feedback which maintains homeostasis.
Step-by-step explanation:
The mechanism that brings about an increasing change in the same direction is known as a positive feedback mechanism. Unlike negative feedback, which maintains homeostasis by correcting deviations from a set point, positive feedback amplifies changes and moves the system further away from equilibrium. An example of a positive feedback mechanism is the process of blood clotting, where the release of clotting factors leads to an enhanced cascade of further clotting until the wound is sealed.