GENERAL KNOWLEDGE

Detailed explanation-1: -pheromone, any endogenous chemical secreted in minute amounts by an organism in order to elicit a particular reaction from another organism of the same species. Pheromones are widespread among insects and vertebrates; they are also found in crustaceans but are unknown among birds.

Detailed explanation-2: -What Are Pheromones? Pheromones are chemical signals that have evolved for communication between members of the same species. A pheromone signal elicits a specific reaction in the receiver, for example, a stereotyped behavior (releaser effect) or a developmental process (primer effect).

Detailed explanation-3: -Pheromones are chemicals produced by one species that affects the physiology or behavior of animals of the same species.

Detailed explanation-4: -Bees, wasps, ants, moths and other insects rely largely upon pheromones as a means of communication. Pheromones are chemical substances which may be secreted in urine, dung or produced by special glands. They are usually given off by the female of the species to attract males.