The letters along the graph note different periods. Identify the periods that each of the following statements describe. Check all that apply. 

a. A strong compensatory response returns body temperature to desirable levels. oA    oB    oC    oD    oE    oF    oG

b. An external or internal factor starts to move body temperature away from the set point. oA    oB    oC    oD    oE    oF    oG

Changes in body temperature during a 24-hour period, as measured in the arms Maximum survivable level Minimum survivable level C E G