Imagine that a potential pathogen has been able to get through the skin, the first line of body defense. what three general defense mechanisms can the body use as a second line of defense to prevent the pathogen from causing a major infection?

Chicken pox and hepatitis are bacterial diseases. true or false?

Why do bacteria thrive even in hostile environments

The pharynx is the structure in the body that serves as a pathway of both air and food. how does the body make sure that food does not get into the lungs? the salivary glands secrete enzymes that pull food out of the air pathway. the small intestine pushes the air out of the digestive system. the pancreas breaks down food in the air pathway. the epiglottis closes the air pathway so that food will not enter it.