Chapter 29.2, Problem 1MC

Summary Introduction

To determine:

The major types of innate defense mechanisms.

Introduction:

There are many organisms that attack other organisms and cause infectious diseases. These organisms are termed as pathogens. Microbes are the most dangerous pathogens that attack the human body. However, all organisms have a well-defined organ system that fights with these pathogens and protect the body from infectious diseases. This organ system is called the immune system.