Aerobic respiration can produce a maximum of 38 ATP per glucose molecule. Anaerobic respiration can produce 2 ATP per glucose molecule. As a result, aerobic respiration is about 19 times more efficient.
<span>The correct answer is d. behavioral<span> stress.
Behavioral signs of stress refer to behaviors and actions that result from undergoing stress. Behavioral stress does not involve feelings of stress (emotional signs), thoughts (cognitive signs) or physical signs such as increased heart rate, shallow breathing, etc. (physical signs). Changes in diet, sleep patterns and routine refer to behavioral signs of stress. </span></span>