How do the mouth, nose, throat, and lungs fight against
pathogens?

The mouth, nose, throat, and lungs fight against pathogens by producing mucus. Mucus acts as a barrier that prevents pathogens from entering the tissues of the body.

Explanation:

The mouth, nose, throat, and lungs fight against pathogens by producing mucus. Mucus acts as a barrier that prevents pathogens from entering the tissues of the body.

Explanation:EDGE2021

i'm guessing this is from edg enuity so the answers would be, from top to bottom,

theodor schwann

matthias schleiden

robert hooke

rudolph virchow

anton van leeuwenhoek

when you breathe in, or inhale, your diaphragm contracts (tightens) and moves downward. this increases the space in your chest cavity, into which your lungs expand. the intercostal muscles between your ribs also enlarge the chest cavity. they contract to pull your rib cage both upward and outward when you inhale.