Which of the Following Statements About the Thermoneutral Zone Is

Multiple Choice

Which of the following statements about the thermoneutral zone is true?

A) Metabolic heat production is variable.
B) Skin blood flow is variable.
C) The environmental temperature equals body temperature.
D) The lower boundary (lower critical temperature) is lower for small than for large endotherms.
E) It is the range of hypothalamic temperatures that do not alter metabolic heat production.