AP BIOLOGY

Detailed explanation-1: -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-2: -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-3: -Pheromones are chemicals capable of acting like hormones outside the body of the secreting individual, to affect the behavior of the receiving individuals. There are alarm pheromones, food trail pheromones, sex pheromones, and many others that affect behavior or physiology.

Detailed explanation-4: -These silent messages consist of chemical substances called pheromones (FER-ah-moanz). The word pheromone is derived from two Greek words, pherein, which means “carry, ” and horman, which means “excite.” Usually the message causes an immediate response. It should be pointed out that not all odors are pheromones.