Final answer:
The false statement about homeostasis is that it is primarily maintained through positive feedback; in fact, homeostasis is predominantly regulated by negative feedback mechanisms that maintain the body's internal environment.
Step-by-step explanation:
The statement about homeostasis which is FALSE is: a. the primary mechanism to maintain homeostasis is positive feedback. In fact, homeostasis is mainly regulated through negative feedback loops which serve to counteract changes and maintain internal conditions within a certain range. This is because negative feedback mechanisms work to prevent an excessive response to a stimulus, thereby helping to maintain equilibrium within the body. In contrast, positive feedback loops tend to push the system further away from its equilibrium and are less common in homeostasis maintenance.
Illness can result if homeostasis is disrupted, indicating how important it is for the body to maintain stable internal conditions. The extracellular fluid is indeed maintained in a state compatible for life, which involves various organ systems working synergistically to maintain homeostasis.