Answer:
When there is a rise in body temperature, the most prominent alteration in the body is an increase in metabolic rate.
Step-by-step explanation:
This implies that the body's cells are working harder to produce energy and maintain cellular function, generating more heat. The body responds to this increase in temperature by activating the sweat glands, which release sweat onto the skin. As the sweat evaporates, it carries away heat from the body, lowering the body temperature. Additionally, the blood vessels in the skin dilate, allowing more blood to flow near the surface of the skin, dissipating heat. These processes are regulated by the hypothalamus in the brain, which acts as the body's thermostat to maintain a constant internal temperature. If the rise in body temperature persists unregulated, it can cause heat exhaustion or heat stroke, which can be serious and even life-threatening.