Final answer:
The symptom of hypothermia not shared with heat stroke is a. increasing the blood to the hands and feet. Heat stroke may lead to increased blood flow to the skin to lose heat, while hypothermia leads to a reduction in blood flow to the extremities to conserve core temperature.
Step-by-step explanation:
Heat stroke and hypothermia indeed share some symptoms due to the stress they place on the body, but they also have significant differences because heat stroke is related to excessive high body temperatures, while hypothermia results from excessively low body temperatures. The symptoms that are shared may include confusion and an altered mental state.
Looking at the options given, the symptom that heat stroke does not share with hypothermia is a. increasing the blood to the hands and feet. This is a response to cold as the body attempts to conserve core temperature by reducing circulation to extremities - a symptom associated with hypothermia. Heat stroke might actually lead to the opposite response of increased blood flow to the skin in an attempt to lose heat.
Lethargy in a cold environment might be a way to conserve heat (option b). Breaking down stored energy (option c) is common to both conditions as the body attempts to maintain a stable temperature. However, d. significantly increasing blood oxygen levels would not be a symptom of hypothermia; rather it might relate to responses seen in illness or compensatory mechanisms which would not be specific to hypothermia and is not indicative of heat stroke.