You are presented with the question "What is used to adjust controls to regulate temperature?" and the following answer choices: 
- glass
 - motors
 - neurons
 - power
 - copper
 - sweat
 - forces
 - keratin

Now knowing that sweat is used for adjusting to hot temperatures by some animals and adjusts controls to regulate temperature and humidity of animals' quarters, choose the best answer.


 

      sweat   