Fact 1: An animal needs to attract a mate to reproduce.

Fact 2: Pheromones have long been known to exist in animals, as scents that attract sex partners.

Given the two facts above, answer the question "What are pheromones used for?" with the following options: 
- genetic diversity
 - Predators
 - gene flow
 - growth
 - Plant reproduction
 - Reproduction
 - Protection
 - Digestion


 

      Reproduction   