Humans come into contact with external agents on a daily basis, agents that could be harmful if allowed the opportunity to enter the body. The most severe are dangerous disease-causing microorganisms, pathogens, or abnormal cells that arise within the body. If bacteria or viruses do gain entry, the body is furnished with a composite, multifaceted […]
The post The Immune System — Our Body Defenses appeared first on Interactive Biology, with Leslie Samuel.
