Answer:
The correct answer is hypothalamus.
The temperature-regulating center of vertebrate animals is located in the hypothalamus.
Step-by-step explanation:
The hypothalamus helps to maintain the balance of internal bodily functions (homeostasis). Many animals are able to keep their body temperature constant. The hypothalamus has a double temperature regulation system. Thus, the anterior or rostral portion, composed of parasympathetic centers, is responsible for dissipating heat, while the posterior portion with sympathetic centers, preserves and maintains body temperature. The temperature with which the blood reaches the hypothalamus will be the main determinant of the body's response to climatic changes.