Final answer:
Pathogens can enter the body through broken skin, nostrils, and any other openings on the body.
Step-by-step explanation:
Pathogens can enter the body through broken skin, nostrils, and any other openings on the body. For example, a cut on the skin or a wound can provide an opportunity for bacteria to enter the body through the broken skin. Similarly, the nostrils can act as a portal for pathogens to enter the body if they are not protected.