Fact 1: Thyroid hormones increase the rate of metabolism in cells throughout the body.

Fact 2: Metabolic rate is the rate at which food is burned for energy.

Given the two facts above, answer the question "What do thyroid hormones increase?" with the following options: 
- Size of ego
 - cause people to become sick.
 - Rate of energy consumption
 - Skill of human
 - aerobic capacity
 - Plants growth
 - Sense of smell
 - Helps them grow


 

   Rate of energy consumption      