Autor: Isabelle M. Gregory

A pheromone is a chemical signal that triggers a natural response in another member of the same species. There are alarm pheromones, food trail pheromones, sex pheromones, and many others that affect …

Thrombin is the main factor of mammalian blood coagulation, a complex system generating fibrin clots that physiologically prevents critical bleeding at local areas of tissue injury. There are many …