Refer to Scenario 3

Multiple Choice

Refer to Scenario 3.1. Could Tony's excitement before the race have caused him to become fatigued toward the end of the race?

A) No; due to homeostatic mechanisms, metabolism remains constant at all times.
B) No; the excess heat produced in his body would have sped up his reaction rates, causing him to run faster.
C) Yes; because of his excitement, his breathing rate increased and he probably hyperventilated before the race, causing him to be tired.
D) Yes; his excitement created more demand for oxygen from his vital organs and tissues, therefore using up that oxygen to produce energy that he needed for the race.
E) No; the body has many ways to produce energy and, therefore, never runs out.