Fact 1: Sweat is used for adjusting to hot temperatures by some animals.

Fact 2: High humidity interferes with evaporation of the sweat.

Given the two facts above, answer the question "What interferes with an animal's ability to adjust to hot temperatures?" with the following options: 
- snow
 - prolactin release
 - lice
 - nervous system
 - Endocrine system
 - high humidity
 - Pituitary gland
 - low moisture


 

      high humidity   