Final answer:
In exocrine communication, a pheromone is released by one individual and travels through the external environment to exert its effects on a different individual of the same species.
Step-by-step explanation:
In exocrine communication, a chemical termed a pheromone is released by one individual and travels through the external environment to exert its effects on a different individual of the same species.
Pheromones are secreted chemical signals used to obtain a specific response from another individual of the same species. They can be used to attract mates, mark food trails, sound alarms, and elicit other behaviors. Examples of pheromones include those used by social insects, such as ants and bees, as well as certain pheromones thought to influence human behavior, such as axillary steroids.