You are presented with the question "Intense _ has a negative impact on an organism" and the following answer choices: 
- dilation
 - contractions
 - vasoconstriction
 - chemical reaction
 - energy of moving objects
 - Greenhouse gasses
 - digestion
 - electromagnetic energy

Now knowing that intense heat has a negative impact on an organism and heat loss is inhibited by the intense vasoconstriction, choose the best answer.


 

   vasoconstriction      