Final answer:
The statement in the question is false; homeostasis refers to the stable internal conditions maintained by an organism, not merely the movement of molecules towards lesser concentration. The movement of molecules is part of homeostasis, through the process of diffusion, where molecules move from areas of higher to lower concentration to maintain equilibrium.
Step-by-step explanation:
The statement 'Homeostasis is the process by which molecules move toward an area of lesser concentration' is false. Homeostasis refers to the maintenance of a stable internal environment within an organism, and while the movement of molecules is involved in this process, the concept is not limited to molecular movement. Specifically, homeostasis is about the consistent adjustments made within the body to changes, maintaining equilibrium as body functions actively stay within a certain range. Growth and dynamic homeostasis are indeed maintained by the constant movement of molecules across membranes, which is a process described by the term 'diffusion'. Diffusion is the tendency of molecules to move from an area of higher concentration to an area of lower concentration until the concentrations are uniform. This movement across membranes is just one aspect of the homeostatic mechanisms that help to keep the conditions within the body's internal environment relatively stable.