Fact 1: Ants communicate with chemicals called pheromones.

Fact 2: Ants are of extreme importance in the insect world.

Given the two facts above, answer the question "How do some insects communicate?" with the following options: 
- sound
 - sensory neurons
 - Decibels
 - electronic waves
 - progesterone
 - Vibrates
 - pheromones
 - radio waves


 

       pheromones  