Which statement is correct? a) transport 1 describes passive transport by diffusion. b) transport 2 describes passive transport by the na+/k+ pump. c) transport 2 describes passive transport by a carrier protein. eliminate d) transport 1 describes facilitated transport of substances through the membrane.

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.