The people of Sumer planted wheat and irrigated their fields in order to have a surplus of food. A. True B. False

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.

How does the nervous system affect the excretory system?

_tissues respond quickly to outside stimuli a) epithelia b)nervous c)muscular d)muscular and nervous