Final answer:
The isometric scaling exponent (0.67) represents the interaction of body volume and surface area.
Step-by-step explanation:
The isometric scaling exponent (0.67) represents the interaction of body volume and surface area. When an object undergoes an isometric scaling, its volume and surface area change in relation to each other. The exponent value of 0.67 indicates that as the volume increases, the surface area increases at a slower rate.