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?
a. the salivary glands secrete enzymes that pull food out of the air pathway.
b. the small intestine pushes the air out of the digestive system.
c. the pancreas breaks down food in the air pathway.
d. the epiglottis closes the air pathway so that food will not enter it

The correct answer is  D) The epiglottis closes the air pathway so that food will not enter it.

The pharynx is the structure in the throat which serves as a pathway of both air and food. The epiglottis ( located on the top of the larynx) is a cartilaginous flap which constantly moves back and forth in order to prevent the entry of food into the lungs.  

When we swallow food, the epiglottis closes the air pathway by covering the larynx ( voice box), which is part of the respiratory system. This allows the food to enter in the esophagus and prevent from entering it in the windpipe.

Thus, the epiglottis closes the air pathway so that food will not enter it.

D

Explanation:

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

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explanation:

i believe it would be c: tons.