Final answer:
An integrating center is part of a homeostatic system, evaluating incoming signals and comparing them with a setpoint to regulate body responses.
Step-by-step explanation:
An integrating center in biological systems, such as those in animals, refers to a key component in maintaining homeostasis. Specifically, it evaluates incoming signals from sensors detecting environmental changes, compares these with the biological set point, and determines the appropriate response.
In the context of a reflex arc, the integrating center could be part of the central nervous system that processes sensory input and formulates an output signal to effector organs or muscles to correct any deviations from the set point.
The typical sequence of homeostatic regulation involves a stimulus that activates a sensor, which sends information to the integrating center. The center then processes this information and sends signals to effectors, like glands or muscles, which then act to return the variable back to the setpoint or within the normal range.