Chapter 24, Problem 1AQ

Summary Introduction

To explain:

The importance of innate immunity upon adaptive immunity. Also, explain the survival of an individual in an immunity free normal environment.

Concept introduction:

Immunity can be defined as the ability of an individual to resist the infections. Two types of immunity have been categorized in human beings-innate immunity and adaptive immunity. Innate immunity can be defined as the built-in capacity of immune systems of organisms to target or kill pathogens regardless of their specific identity. Adaptive immunity is a type of immunity which is produced upon exposure to specific pathogens.