Final answer:
Aging and environmental changes can cause homeostatic imbalance.
Step-by-step explanation:
Two factors that can contribute to homeostatic imbalance are aging and environmental changes.
Aging can bring about a reduction in the efficiency of the body's control system, making the elderly more susceptible to disease. This can lead to a failure in homeostasis and an imbalance in the body's internal environment.
Environmental changes, such as exposure to toxic substances or unhealthy habits, can also disrupt homeostasis and contribute to imbalances in the body.