Placed the parts of the human circulatory system in order from highest to lowest degree of internal organization

What do science, technology, and disease have to do with each other?

Nucleic acid certain protein cell membranes certain carbohydrates

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.