Fact 1: Ants communicate with chemicals called pheromones.

Fact 2: Ants communicate with the colony in the form of what is called pheremon trails.

Given the two facts above, answer the question "Ants communicate with the colony using what?" with the following options: 
- Electrical energy
 - Chemical energy
 - visible energy
 - Decibels
 - pheremon traits
 - heat energy
 - refraction of light
 - mechanical waves


 

     pheremon traits    