Ants communicate with chemicals called pheromones, and ants use receptors on their antennae to follow recruitment pheromone trails. Given these facts, what do ants use to communicate among the following options:
- nerves
 - heat energy
 - sound
 - binary code
 - light energy
 - Antennae.
 - megaphones
 - hand signals


 

      Antennae.   