Question

For a science project, Brad takes his temperature several times a day over the course of a week. He only takes his temperature when he is relaxed and has not been exercising. When he charts his temperature vs the time of day, he gets the following graph: The graph shows that Brad's body temperature A. is affected by many different variables. B. is a cycle that is 24 hours long. C. controls his patterns of sleeping and being awake. D. changes by 4°C over the course of a day.

Answer 1

Answer:

B. is a cycle that is 24 hours long.

Explanation:

The graph shows that Brad's body temperature is a cycle that is 24 hours long. Although he took the data over the course of many days, all his data fit into one shape, or pattern, with its position mainly determined by the time of day.