Blood made up of red blood cells and white blood cells ,work together to form which level of organization?

How do antiviral drugs work? in your own words.

The production of cells during mitosis into specialized function is recombination or differentiation

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.