Question
Which one of the following is called intra-specific chemical messenger?
Pheromones
Prostaglandins
Corticotrophin
Catecholamines
Solution
A.
Pheromones
Pheromone is a chemical substance produced and released into the environment by an animal, especially a mammal or an insect, affecting the behaviour or physiology of others of its species.There are alarm pheromones, food trail pheromones, sex pheromones and many other that affect behaviour or physiology.
