Please answer the following question: Read the passage below and choose the right answer to the following question (choices are more or less ):  On a hot day, an endotherm may give off more heat by increasing blood flow to the surface of the body.   After Sarah finishes her run, she notices that her blood is really pumping. Sarah can know that since it's a hot day, she's giving off what kind of heat compared to usual more or less?
Answer:
more