B) insertion
C) deletion
D) replication
Answer:
Food enters the body through the mouth where it is mixed with digestive enzymes from the saliva. These enzymes begin the digestion of starch into sugars. The bolus is propelled to the pharynx by the tongue. The epiglottis closes over the tracheid upon swallowing to protect the respiratory tract from food particles
convergent boundaries.
divergent boundaries.