AP BIOLOGY

Detailed explanation-1: -Pheromones. Pheromones are chemical signals, that is, carriers of information between individuals within a species. Pheromones induce a physiological or behavioral response in the receiving individual, and often play a crucial role in mate finding and other interactions among animals.

Detailed explanation-2: -Pheromones are also sometimes classified as ecto-hormones. They were researched earlier by various scientists, including Jean-Henri Fabre, Joseph A. Lintner, Adolf Butenandt, and ethologist Karl von Frisch who called them various names, like for instance “alarm substances".

Detailed explanation-3: -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). Some pheromones can have both effects.

Detailed explanation-4: -Pheromones are chemicals produced by one species that affects the physiology or behavior of animals of the same species. Pheromones assist in reproduction, feeding, social interactions and maternal-neonatal bonding in mammals.

Detailed explanation-5: -Pheromones are chemicals produced as messengers that affect the behavior of other individuals of insects or other animals. They are usually wind borne but may be placed on soil, vegetation or various items.