Which condition involves a rabbit having an abnormal body structure?

The condition associated with an abnormal body structure in rabbits is indeed related to having a pot belly. A pot belly indicates an abnormal distension of the abdomen, which can result from various underlying issues such as obesity, gastrointestinal problems, or parasites. This visualization of the body can suggest a disease process that alters the physical appearance of the rabbit, distinguishing it from conditions that may not affect body structure directly.

In contrast, fleas are external parasites that infest the skin but do not change the structural condition of the rabbit's body. Cold symptoms refer to respiratory issues that may cause discomfort but do not alter the overall body structure. Conjunctivitis, an eye condition, affects the eyes and surrounding tissues but again does not impact the body’s structure. Therefore, pot belly is the only condition listed that directly indicates an abnormal structural aspect of the rabbit's body.