Answer: Innate Immunity
Explanation: Innate immunity is the general and nonspecific immunity that your body possesses to fight various diseases. It comprises defense barriers such as the skin, hair, sebum, saliva, neutrophils, monocytes, and other enzymes that immediately detect and destroy the pathogens. It's a rapid response system that acts as the first line of defense against infections. You're born with the components of the innate immunity, and it can't be learned, created, or produced, hence the name “innate.” Since bacteria and viruses multiply quickly, innate immunity is crucial in providing protection until the second line of defense, or adaptive immunity, starts involving in the process. In addition to providing the first line of defense against disease-causing microorganisms, the innate immune system activates, directs, and instructs components of the adaptive immunity. It also regulates inflammation and maintains equilibrium among various immune system processes... PF