Thyroid hormones increase the rate of metabolism in cells throughout the body, and thyroxine, a thyroid hormone, is an aryl iodide. Given these facts, what increases the rate of metabolism in cells throughout the body among the following options:
- Thyroxine
 - Smoking
 - fever
 - bioaerosols
 - acetic acid
 - sweating
 - Power plants
 - heat produced


 

 Thyroxine        